Conversion Kits

Conversion Kits for mini lathes and mini mills - LittleMachineShop.com

LittleMachineShop.com has bed extension kits for mini lathes, air spring kits for mini mills and more. Metric threading kits let you turn metric threads on your mini lathe. All of our conversion kits come with complete step-by-step instructions.

2258 Air Spring Conversion Kit

Converts torsion spring mini mills to air spring
Allows travel to the top of the column
Provides better support for the mill head

Convert torsion spring mini mills to air spring. Most mini mills use a torsion spring mounted on the side of the column to support the head. This air spring conversion kit provides all the parts required to change to a vertical air spring that mounts inside and above the column. With the air spring installed, you can move the mill head up until the top of the casting is almost flush with the top of the column. You can move it down until it almost contacts the adjustable Z-axis stop set in its lowest position. Besides all the parts required to mount the air spring, this kit also includes a longer Z-axis rack so you can take advantage of the longer head motion. This air spring has about 35 pounds of force. This is not enough to totally support the head, but it is a heck of a lot more support than the torsion arm provides.

6344 Air Spring Conversion Kit, HiTorque Bench Mills CLOSEOUT

Better support for the mill head
Greater Z-axis travel with improved Z-axis upper limit
Includes gas strut and parts shown here

Convert torsion spring HiTorque Mini Mills to air spring. Mini mills use a torsion spring mounted on the side of the column to support the head. This air spring conversion kit for mini mills provides all the parts required to change to a vertical gas strut that mounts inside and above the column. With the air spring and Z-axis limit installed, you can move the mill head up until the top of the casting is flush with the top of the column. You can move it down until it contacts the adjustable Z-axis stop set in its lowest position. Besides all the parts required to mount the air spring, this air spring conversion kit for bench mills also includes a longer Z-axis rack so you can take advantage of the longer head motion. This air spring has about 35 pounds of force. This about enough to support the head, and it is a heck of a lot more support than the torsion arm provides.

4005 Air Spring Conversion Kit, HiTorque Mini Mills

Better support for the mill head
Greater Z-axis travel with improved Z-axis upper limit
Includes gas strut and parts shown here

Convert torsion spring HiTorque Mini Mills to air spring. Mini mills use a torsion spring mounted on the side of the column to support the head. This air spring conversion kit for mini mills provides all the parts required to change to a vertical gas strut that mounts inside and above the column. With the air spring and Z-axis limit installed, you can move the mill head up until the top of the casting is flush with the top of the column. You can move it down until it contacts the adjustable Z-axis stop set in its lowest position. Besides all the parts required to mount the air spring, this air spring conversion kit for mini mills also includes a longer Z-axis rack so you can take advantage of the longer head motion. This air spring has about 35 pounds of force. This about enough to support the head, and it is a heck of a lot more support than the torsion arm provides.

5206 Analog Conversion Kit, 20TPI

Replaces both DRO units with 0.001" graduated dials
Use this kit to convert a lathe with the older DROs (gray)

This kit contains the parts required to replace the DRO readouts with dials. The screws are 20 TPI so there are 50 graduations on the dials. Use this kit to convert a lathe with the older DROs (gray).

4156 Analog Conversion Kit, Bench Lathe Compound Rest

Replaces the compound rest DRO with 0.001" graduated dials

This kit contains the parts required to replace the DRO readout with a dial on the bench lathe compound rest. Use this kit to convert a lathe with the black DROs.

4155 Analog Conversion Kit, Bench Lathe Cross Slide

Replaces the cross slide DRO with 0.001" graduated dials

This kit contains the parts required to replace the DRO readout with a dial on the bench lathe cross slide. This kit requires that you match drill a hole through the feed screw to align a gear. Use this kit to convert a lathe with the black DROs.

5836 Analog Conversion Kit, Mini Lathe

Replaces both DRO units with 0.001" graduated dials
Use this kit to convert a lathe with the newer DROs (black)

This kit contains the parts required to replace the DRO readouts with dials. The screws are 1mm pitch so there are 40 graduations on the dials. Use this kit to convert a lathe with the newer DROs (black)

5000 Bed Extension Kit 16"

Precision ways are approximately 28-3/8" long
Rack is approximately 17-3/4" long
Lead screw is approximately 29-5/16" long
PLEASE CHECK COMPATABILITY BEFORE ORDERING

This lathe bed extension kit turns your 7x10, 7x12, or 7x14 lathe into a 7x16 lathe. This lathe conversion kit includes a bed casting, a lead screw, a rack, a motor mount, a chip pan, 2 chip pan braces, several fasteners, and complete instructions. The 7x16 bed is actually 8" longer than the 7x10 bed. It is 4" longer than the 7x12 bed. This is NOT a bolt-together kit. You must drill and tap 9 holes in the new bed casting to match your lathe. You need three metric taps: M3x0.5, M6x1, and M8x1.25. If you don't have metric drills, you can use letter and number drills for tap drills. (The sizes are given in the instructions.)

4270 Bed Extension Kit 16", HiTorque Mini Lathes

ONLY FITS LittleMachineShop.com HiTorque 7x12 Mini Lathes
Extend your HiTorque Mini Lathe to 16" between centers
Precision ground ways are approximately 27-7/8" long
Rack is approximately 18" long
Lead screw is approximately 29" long

This kit turns your Littlemachineshop.com 7x12 HiTorque Mini Lathe into a 7x16 lathe. It includes a bed casting, a lead screw, a rack, a chip pan, and complete instructions. This is NOT a bolt-together kit. You must drill and tap 10 holes in the new bed casting to match your lathe. You need three metric taps: M3x0.5, M6x1.0, and M8x1.25. If you don't have metric drills, you can use letter and number drills for tap drills. (The sizes are given in the instructions.)

2560 Belt Drive Conversion Kit, Mini Mill

No more broken drive gears
Much quieter operation
Spindle speed up to 4300 RPM
Ideal for manual and CNC mini mills
PLEASE CHECK COMPATABILITY BEFORE ORDERING

This mini mill belt drive conversion kit provides an easy-to-install alternative to the noisy and fragile factory-installed gears that drive the spindle on the mini mill. This kit is CNC-machined from the highest quality materials. Designed to run full-time, it is built to last. The belt drive conversion kit includes one belt. Change speeds without any tools. Simply remove the guard, loosen the lever locks and move the belt from one pair of pulleys to the other. Low speed range is 0-1700 RPM. High speed range is 0-4300 RPM. The installation is bolt-on and takes about 20 minutes. This belt drive kit fits the mills shown on the Compatibility tab. Don't expect it to fit other machines. The small pulley has a 9 mm bore with a 3 mm keyway. The large pulley has a 30 mm bore with a 5 mm keyway. If your shafts don't match these values, then this belt drive will not fit your mill.

4645 CNC Spindle Control Upgrade Kit for Small Mill and Bench Lathe

Converts brushless DC drive to CNC control
Provides speed, on/off, and direction control
For 1000 watt Brushless DC drive, 120V 60Hz
Compatible with SIEG SX3 small mills
Compatible with SIEG SC4 and HiTorque bench lathes

This CNC spindle control kit consists of a small circuit board that replaces the circuit board with the speed control potentiometer, plus a replacement chip for the motor controller card. This conversion kit works on many SIEG SX3 milling machines and SC4 bench lathes, as well as HiTorque bench lathes. See the Compatibility tab for machines that work with this product.

4213 CNC Spindle Control Upgrade Kit, Mini Lathe and Mini Mill

Converts brushless DC drive to CNC control
Provides speed, on/off, and direction control
For 500 watt Brushless DC drive, 120V 60Hz
Compatible with SIEG SX2 and HiTorque mini mills
Comnpatible with SIEG SC2 and HiTorque mini lathes

This CNC spindle control kit consists of a small circuit board that replaces the circuit board with the speed control potentiometer, plus a replacement chip for the motor controller card. This conversion kit works on many SIEG SX2 and HiTorque mini mill as well as SIEG SC2 and HiTorque mini lathes. See the Compatibility tab for machines that work with this product.

4505 Control Box Assembly, 7x14 Mini Lathe

For 7x14 Mini Lathe
120V 60Hz input

This control box kit includes the plastic control box, the motor controller, the emergency stop switch, the F/O/R switch, the potentiometer, the fuse holder and fuse. This is a fully-assembled control box. Simply hook up the power and motor leads and go. For 120V 7x14 C3 mini lathes.

3042 Control Box Assembly, Mini Lathe

For 7x10 and 7x12 Mini Lathe
Incorporates XMT-1125 controller
120V 60Hz input

This mini lathe control box kit includes the plastic control box, the motor controller, the emergency stop switch, the F/O/R switch, the potentiometer, the fuse holder and fuse. This is a fully-assembled control box. Simply hook up the power and motor leads and go. Use this box to replace FC250/110V, and FC250BJ/110V, FC250J/110V boards. For 120V 7x10 and 7x12 C2 mini lathes

4503 Control Box Assembly, Mini Mill

For all Mini Mills with conventional DC drives
Saves complicated rewiring for updated controller board
120V 60 Hz input

This control box assembly includes two plastic control boxes, the motor controller, the emergency stop switch, the I/O switch, the potentiometer, the fuse holder and fuse. This is a fully-assembled control box set. Simply hook up the motor leads and go. One box mounts on the back of the column, the other on the side of the head. This package includes the current-production XMT-1135 motor controller. For all 120V mini mills except those with brushless DC drives.

3200 Control Box Kit, Mini Lathe 230V

For 7x10 and 7x12 Mini Lathe
220-240V 50-60Hz

This control box kit includes the plastic control box, the motor controller, the emergency stop switch, the F/O/R switch, the potentiometer, the fuse holder and fuse. This is not a fully-assembled control box. You have to assemble and wire it.

1174 Control Panel Upgrade Kit, Bench Lathe

Complete new control panel
For 3536, 3540 bench lathes
Includes motor controller

This is an upgrade kit for the control panel on the bench lathe. This kit a box of parts from which you can create a new style control panel for your lathe. You should be handy with a soldering iron because there are quite a few wires needed on the back of the control panel. The instructions consist of a few notes, photos and wiring diagrams. This kit requires removal of the spindle disengage knob and mechanism. The kit is expensive because the new control board requires a new motor controller (P/N 1175 - Included).

4450 Extended Cross Slide Travel Kit

Extends cross slide travel on 7x10 and 7x12 lathe by 1 inch
Made for SIEG models C2 and C3 lathes
If your lathe is not listed in compatibility, call our tech dept.

This kit adds one inch to the travel of the lathe cross slide on 7x10 and 7x12 mini lathes. These are designed for SIEG C2 and C3 lathes. The increased travel is away from the centerline of the lathe so you can work on larger diameter work pieces. This lathe conversion travel kit replaces the saddle and the cross slide feed screw, and it includes a spacer for the longer screw. See the Compatibility tab for machines and other products that work with this product.

5366 Extended Cross Slide Travel Kit 20 TPI

Specific Screw for Micro-Mark brand lathes
Also works on any SIEG mini lathe that has been converted to 20 TPI screws

This kit adds one inch to the travel of the cross slide on 7x12, 7x14, and 7x16 Micro-Mark mini lathes and other mini lathes with 20 TPI feed screws. The increased travel is away from the centerline of the lathe so you can work on larger diameter work pieces. This kit replaces the saddle and the cross slide feed screw, and it includes a spacer for the longer screw.

5847 Extended Cross Slide Travel Kit DRO (Black Scales)

Specific Screw for our newer style 5200 HiTorque lathes
Also works on any SIEG mini lathe that has the 5567 DRO kit installed
ONLY ORDER THIS VERSION IF YOU HAVE THE NEWER, BLACK DRO READOUTS

This kit adds one inch to the travel of the cross slide on 7x12, 7x14, and 7x16 mini lathes with the SIEG DRO mounted. These are SIEG C2 and C3 lathes. The increased travel is away from the centerline of the lathe so you can work on larger diameter work pieces. This kit replaces the saddle and the cross slide feed screw, and it includes a spacer for the longer screw.

5367 Extended Cross Slide Travel Kit DRO (Gray Scales)

Specific Screw for our older style 4200 and 5200 HiTorque lathes
Also works on any SIEG mini lathe that has the 2222 DRO kit installed
ONLY ORDER THIS VERSION IF YOU HAVE THE OLDER, GRAY DRO READOUTS

This kit adds one inch to the travel of the cross slide on 7x10, 7x12, 7x14, and 7x16 mini lathes with the SIEG DRO mounted. These are SIEG C2 and C3 lathes. The increased travel is away from the centerline of the lathe so you can work on larger diameter work pieces. This kit replaces the saddle and the cross slide feed screw, and it includes a spacer for the longer screw.

3954 Feed Screw Parts, 20 TPI, HiTorque Mini Mill
These parts change HiTorque mini mills to 20 thread per inch feed screws on the X- and Y-axis. Each rotation of the hand wheel will advance the table 0.050". The kit includes two feed screws, two nuts, two 50 division dials, plus the springs and keys that you are going to lose during disassembly.

2383 Feed Screw Parts, 20 TPI, Mini Lathe
These parts change Grizzly, Harbor Freight, Homier, and Cummins mini lathes to 20 thread per inch feed screws on the cross slide and compound rest. Each rotation of the hand wheel will advance 0.050".

1764 Feed Screw Parts, 20 TPI, Mini Mill
These parts change Grizzly, Homier, Cummins, and Harbor Freight mini mills to 20 thread per inch feed screws on the X- and Y-axis. Each rotation of the hand wheel will advance the table 0.050". The mini mill tool kit includes two feed screws, two nuts, two 50 division dials, plus the springs and keys that you are going to lose during disassembly. This mini mill conversion kit has the correct screw to work with the mini mill power feed.

4047 Feed Screw Parts, Metric, Bench Lathe

Fits HiTorque Bench Lathe
Fits SIEG C4 and SC4 lathes

These parts change the cross slide and compound feed screws, and the carriage dial to metric.

1201 Feed Screw Parts, Metric, HiTorque Bench Mill

For models 5500, 6500

This kit changes the HiTorque bench mill to metric feed screws on the X-, Y- and Z-axis. The kit includes three feed screws, three nuts, three dials, and one scale.

1178 Feed Screw Parts, Metric, HiTorque Bench Mill Deluxe

For models 5550, 6550

This kit changes the HiTorque deluxe bench mill to metric feed screws on the X-, Y- and Z-axis. The kit includes three feed screws, three nuts, three dials, and one scale.

4249 Feed Screw Parts, Metric, HiTorque Mini Mill
This kit changes the HiTorque mini mill to metric feed screws on the X- and Y-axis. It also changes the Z-axis to read in mm. The kit includes two feed screws, two nuts, two dials, two scales, the Z-axis feed knob, plus the springs, pins and keys that you are going to lose during disassembly.

1989 Feed Screw Parts, Metric, Mini Mill
This kit changes the mini mill to metric feed screws on the X- and Y-axis. It also changes the Z-axis to read in mm. The kit includes two feed screws, two nuts, two dials, two scales, the Z-axis feed knob, plus the springs, pins and keys that you are going to lose during disassembly.

3843 Gib, Mini Lathe, 150 mm/120 mm, Brass (Pair)

Brass gib for cross slide
Brass gib for compound rest

These brass gibs are items 94 and 107 on your parts diagram. Fits all 7x10, 7x12, 7x14, and 7x16 mini lathes.

4151 High Speed Spindle Kit, HiTorque Mini Mill

Fits HiTorque mini mills
5000 rpm top speed
Includes two pulleys and a belt
Belt is 350-5M-15, 70 teeth

These pulleys change the spindle speed range to 5000 rpm max. It's important to have high speed bearings, as the standard bearings are not rated to 5000 rpm. Most LittleMachineShop.com HiTorque Mini Mills have high speed bearings--see the Chris' Tips tab. The increased speed is great for small cutters such as those used for engraving. Just remember that doubling the speed will cut the torque in half. This high speed spindle kit uses the same belt as the standard drive pulleys. We do not have installation instructions completed yet, so you are on your own for installation. The pulleys are easy, but if you have to change the bearings you have to press the spindle out and back in. A hydraulic press makes it an easy task. Switching pulleys to the original set shouldn't take more than 20 minutes.

5177 Large Table Solid Column Conversion Kit, Mini Mill

Converts a tilting column mini mill to the large table solid column version
30% more travel in both directions
50% more table area
Solid column is significantly more rigid

This kit converts a tilting column mini mill to a large table with a solid column. The kit includes the X-Y table and column from the HiTorque Solid Column Mini Mill (part number 3990), the fasteners needed to connect them. This kit contains a complete X-Y table assembly for a mini mill. The table is 120 mm (4.73") by 460 mm (18.11"). It has three 12 mm T-slots. The X-axis travel is 300 mm (11.8") and the Y-axis travel is 130 mm (5.1"). The dials are graduated in 0.001" and one turn of the hand wheels moves the table 0.050". The X-Y table is made of cast iron and steel. There are adjustable gibs on both axes.

5855 Long Table Kit, Bench Mill

Extra long table for Bench Mill, X2.7 and SX2.7 mills

This extra long mill table fits the LittleMachineShop.com 5500 & 6500 Bench Mill, the SIEG X2.7 and SIEG Super SX2.7 mills The kit comprises a table and feed screw plus a larger saddle. It includes all the small parts required to install it. The table is 27.5" x 6.25" (699 mm x 159 mm). The kit requires drilling a few holes. This kit also requires you to order replacement gibs, and cut them to size.

2642 Long Table Kit, Micro Mill

Table is 400 mm x 145 mm
X-Axis travel is 330 mm
Provides 150 mm more X-axis travel

This kit adds a larger table, and increases the X-axis travel to 330 mm on the Harbor Freight 47158 micro mill. The conversion kit includes a new table and 20 TPI X-axis screw.

3492 Long Table Kit, Micro Mill, Metric

Table is 400 mm x 145 mm
X-Axis travel is 330 mm
Provides 150 mm more X-axis travel

This kit adds a larger table, and increases the X-axis travel to 330 mm on the SIEG X1 micro mill. The conversion kit includes a new table and metric X-axis screw. This kit includes a metric feed screw. It will not work on micro mills sold in the US.

3845 Long Table Kit, Super X3L - CLOSEOUT

Extra long table for X3 SX3 mills

This extra long mill table fits both SIEG X3 and SIEG Super X3 mills and comes complete with an extra long feed screw and rule which may be fitted to the front of the table with the rivets supplied. The table is 700 mm x160 mm.

3446 Metal Gear Kit, Mini Lathe Complete

Changes every plastic gear on the mini lathe to metal
Metal change gear set
Metal 2-speed transmission gears
Metal lead screw drive gears
Metal 80-tooth gears

This mini lathe gear kit changes every plastic gear on a mini lathe to steel. You will never break a plastic gear again. *NOTE* This set is designed for the older SIEG C2 lathes (see compatibility tab). If you own a HiTorque mini lathe, see product 3938 for metal gears.

3448 Metal Transmission Gear Kit, Mini Lathe & 3MT Mini Mill

Replaces both plastic transmission gears with metal
Fits mini lathes and 3MT mini mills
Small Gear: 12 Teeth / 20 Teeth, 12 mm Bore, 4 mm Keyway
Large Gear: 21 Teeth / 29 Teeth, 30 mm Bore, 5 mm Keyway

Once this steel gear set is installed on your mini lathe or mini mill, you will no longer have to worry about breaking the hard-to-replace gears inside the headstock. On the mini lathe, the belt drive ensures that expensive parts don't break from overloads. On the mini mill, the easy-to-replace intermediate gear on top of the headstock is still plastic. This helps to ensure that you don't break expensive and hard to replace parts. The smaller in this set is smaller of the two transmission gears. It has 12 Teeth on one end and 20 teeth on the other. The larger of the two is the larger of the two transmission gears. It has 21 Teeth on one end and 29 teeth on the other.

1691 Metric Threading Kit 10"

Metric threading kit for 7x10 mini lathes
Fits HiTorque, SIEG, and other 7x10 mini lathes

Metric threading kit for 7x10 mini lathes. This kit replaces the lead screw and half nuts so you can more easily cut metric threads. You cannot use a threading dial with this kit installed. There is no metric threading dial. See the Compatibility tab for machines known to work with this product.

1690 Metric Threading Kit 12"

Metric threading kit for 7x12 mini lathes
Fits HiTorque, SIEG, and other 7x12 mini lathes

Metric threading kit for 7x12 mini lathes. This kit replaces the lead screw and half nuts so you can more easily cut metric threads. You cannot use a threading dial with this kit installed. There is no metric threading dial. See the Compatibility tab for machines known to work with this product.

2026 Metric Threading Kit 14"

Metric threading kit for 7x14 mini lathes
Fits HiTorque, SIEG, and other 7x14 mini lathes

Metric threading kit for 7x14 mini lathes. This kit replaces the lead screw and half nuts so you can more easily cut metric threads. You cannot use a threading dial with this kit installed. There is no metric threading dial. See the Compatibility tab for machines known to work with this product.

4877 Metric Threading Kit 16"

Metric threading kit for 7x16 mini lathes
Fits HiTorque, SIEG, and other 7x16 mini lathes

Metric threading kit for 7x16 mini lathe or HiTorque mini lathes that have the 7x16 bed extension. This kit replaces the lead screw and half nuts so you can more easily cut metric threads. You cannot use a threading dial with this kit installed. There is no metric threading dial. See the Compatibility tab for machines known to work with this product.

4293 Mini Lathe Deluxe DRO Kit

Digital Readouts for cross slide and compound rest
Metal hand wheels and chrome levers
All metal change gears

This digital readout kit will equip your mini lathe with digital readouts on the cross slide and compound rest. The attractive hand wheels are all metal, and the levers are chrome. All the good-looking change gears are metal. This DRO kit works on any 7x10, 7x12, 7x14, or 7x16 lathe made by SIEG, which includes virtually all the mini lathes sold in the US and most of the mini lathes sold world-wide. The DRO mounts right on the cross slide and compound rest to give you accurate depth-of-cut readings. The resolution is 0.0001", the accuracy is 0.001". There are buttons for On/Off, Zero, and Inch/MM.

5113 Power Feed, 6500 Bench Mill CLOSEOUT

Fits 5500 & 6500 HiTorque Bench Mills and SIEG Sx2.7 Mills
Clutch disengages power feed when not in use
Adjustable limit switches restrict travel
120-240V 50-60Hz

Power table feed for the SX2.7 mill. This power feed mounts on the left end of the mill's table and drives the X-axis feed screw. It is variable speed (0 to 20 inches per minute). The kit takes about 20 minutes to install. It is a bolt-on accessory for the bench mill and requires no modifications to the machine. The power feed adds 8 1/4" inches to the left end of the table. The power feed works on 120-240V 50-60Hz power. It has a computer-style (IEC 60320 C3/C4) power cord that unplugs from the power supply unit. This makes it easy to adapt for other countries. The furnished power cord has a North American (NEMA 5-15P) wall plug.

5850 Power Feed, Deluxe Bench Mill

Fits 5550 & 6550/6570 HiTorque Bench Mills and SIEG Sx2.7L Mills
Clutch disengages power feed when not in use
Adjustable limit switches restrict travel
120-240V 50-60Hz

Power table feed for the SX2.7L mill. This power feed mounts on the left end of the mill's table and drives the X-axis feed screw. It is variable speed (0 to 20 inches per minute). The kit takes about 20 minutes to install. It is a bolt-on accessory for the bench mill and requires no modifications to the machine. The power feed adds 8 1/4" inches to the left end of the table. The power feed works on 120-240V 50-60Hz power. It has a computer-style (IEC 60320 C3/C4) power cord that unplugs from the power supply unit. This makes it easy to adapt for other countries. The furnished power cord has a North American (NEMA 5-15P) wall plug.

5112 Power Feed, HiTorque and SIEG X2D/X2L Mini Mills

Fits large-table mini mills
Clutch disengages power feed when not in use
Adjustable limit switches restrict travel
120-240V 50-60Hz

Power table feed for the LMS HiTorque mills and other large-table mini mills such as the LMS SIEG X2D mill (#4962). This power table feed mounts on the left end of the mini mill's table and drives the X-axis feed screw. It is variable speed (0 to 20 inches per minute). The power feed takes about 20 minutes to install. It is a bolt-on accessory for the HiTorque Mini Mill and requires no modifications to the machine. The power feed adds 8 1/4" inches to the left end of the table. This mini mill power feed works on 120-240V 50-60Hz power. It has a computer-style (IEC 60320 C3/C4) power cord that unplugs from the power supply unit. This makes it easy to adapt for other countries. The furnished power cord has a North American (NEMA 5-15P) wall plug. This mini mill power feed also fits the Grizzly G0727 horizontal/vertical mill. SIEG U1 See the Compatibility tab for machines and other products that work with this product.

5111 Power Feed, Mini Mill

Fits standard mini mills
Clutch disengages power feed when not in use
Adjustable limit switches restrict travel
120-240V 50-60Hz

Power table feed for the the SIEG X2 class of mini mills (small table) including Harbor Freight 44991 and Grizzly G8689. This power feed mounts on the left end of the mini mill's table and drives the X-axis feed screw. It is variable speed (0 to 20 inches per minute). The mini mill power feed kit takes about two hours to install. The power feed unit bolts to existing bolt holes in the left end of the table. The limit switch mechanism is mounted to the back of the mill table. The power feed adds 8 1/4" inches to the left end of the table. This mini mill power feed kit fits any mini mill with an extended X-axis feed screw. Look under the left side of the table to see if the X-axis feed screw has a 2 1/2" long unthreaded extension with a slot in the end. If so, you can use this power feed kit. The x-axis power feed works on 120-240V 50-60Hz power. It has a computer-style (IEC 60320 C3/C4) power cord that unplugs from the power supply unit. This makes it easy to adapt for other countries. The furnished power cord has a North American (NEMA 5-15P) wall plug. See the Compatibility tab for machines and other products that work with this product.

5114 Power Feed, X3 & SX3 Mills CLOSEOUT

Fits X3 and SX3 Mills, Grizzly G0463 and G0619

Power table feed for the X3 and SX3 mills. This power feed mounts on the left end of the mill's table and drives the X-axis feed screw. It is variable speed (0 to 12 inches per minute). The kit takes about 20 minutes to install. It is a bolt-on accessory for the mini mill and requires no modifications to the machine. The power feed adds 8 1/4" inches to the left end of the table. The power feed works on 120-240V 50-60Hz power. It has a computer-style (IEC 60320 C3/C4) power cord that unplugs from the power supply unit. This makes it easy to adapt for other countries. The furnished power cord has a North American (NEMA 5-15P) wall plug.

2592 Power Switch Upgrade Kit

Heavy duty switch
Five times the rated life of the standard switch
Switch rated at 16 A at 120/250 VAC
No soldering required to install

This is an upgrade kit for the illuminated power switch on Harbor Freight mini lathes. The kit contains an upgraded switch, two crimp terminals, and a multi-stack quick disconnect. You have to un-solder the old switch, but the crimp terminals eliminate soldering during installation.

4483 Solid Column Conversion Kit, Mini Mill

Converts a tilting column mini mill to the solid column version
Adds rigidity and stability to the mini mill
Compatible with the HiTorque 3900 mini mill
Can be used on SIEG X2 and SX2 Mini Mills
See compatibility Tab for mills that work with this product

This mini mill conversion kit converts a tilting column mini mill to solid column. Designed for SIEG family of mini mills in the X2 and SX2 family as well as the early HiTorque tilting column mill model 3900. The kit includes the mini mill base and column, the fasteners needed to connect them, and complete instructions.

2823 Spindle Conversion Kit, 3MT
This kit converts an R8 mini mill to a 3MT spindle. The kit includes: 3MT spindle A double spindle gear A spacing ring Two keys One bearing One drawbar Complete instructions

1625 Spindle Conversion Kit, R8

This kit converts a Grizzly or Micro-Mark mini mill to an R8 spindle

The kit includes: -R8 spindle -Two spindle gears -Two spacing rings -Two keys -One bearing -One drawbar -Complete instructions

4762 Spindle Lock, Interlocked, HiTorque Mini Mill

Makes tool changes easier, faster, and safer
When engaged, the plunger automatically drops into the locking hole as the spindle is rotated
An electro-magnetic interlock disables power to the motor when the spring plunger is engaged
Frees both hands for changing tools
Loosen and tighten keyless chucks with one hand

The spindle brake provides a semi-automatic method of locking the spindle freeing both hands to complete a tool change. A safety switch disables power to the motor when the spring plunger is engaged. Fits SIEG SX2 mills

2018 Tailstock Cam Lock Kit
This kit converts a standard mini lathe tailstock to lock by lever action. This camlock action locks the tailstock to the ways by moving a lever about 45 degrees. You must drill one 1/2" hole in the back of the tailstock casting. This lathe cam lock kit is made from heat treated 4140 steel for long life.

5201 Telescoping Lead Screw Cover, 7x10, 7x12

All metal construction
Works with threading dial

These are telescoping metal covers for the lead screw of your mini lathe. Mounting requires that you drill and tap several holes in your lathe. The installation tools hold the lead screw covers in place as you mark the hole locations.

5202 Telescoping Lead Screw Cover, 7x14, 7x16

All metal construction
Works with threading dial

These are telescoping metal covers for the lead screw of your mini lathe. Mounting requires that you drill and tap several holes in your lathe. The installation tools hold the mounting brackets in place as you mark the hole locations.

5909 Threading Helper Kit

Replaces a DRO unit for threading
Changeover takes about two minutes
ONLY ORDER THIS VERSION IF YOU HAVE THE NEWER, BLACK DRO READOUTS

These parts allow you to place the compound at 29.5 degrees for threading when you have a DRO installed on your mini lathe. The dial works just as well as the DRO for this application because you are always returning to the same reading, usually zero, for each threading pass.

5009 Threading Helper Kit

Replaces a DRO unit for threading
Changeover takes about two minutes
ONLY ORDER THIS VERSION IF YOU HAVE THE OLDER, GRAY DRO READOUTS

3449 Transmission Gear Kit, R8 Mini Mill, Metal

Replaces both plastic transmission gears with metal
Fits R8 mini mills
Includes 2-Speed Intermediate Shaft Gear
Includes R8 Spindle No. 1 Gear
Includes R8 Spindle No. 2 Gear

Enhance the longevity and reliability of your mini mill with our R8 metal transmission gear replacement set. This set includes three gears - Spindle gears 1 and 2, and a 2-speed intermediate shaft gear - that are crucial for the smooth operation of the headstock. These gears are made of durable metal, ensuring they can withstand the rigors of regular use. With this replacement set, you'll no longer have to worry about the inconvenience and cost of replacing broken gears inside the hard-to-reach headstock. Upgrade your mini mill's performance and ease of use with this essential replacement set. On the mini mill, the easy-to-replace intermediate gear on top of the headstock is still plastic. This helps to ensure that you don't break expensive and hard to replace parts.

3940 Tweaks & Enhancements Kit, HiTorque Mini Lathe

Several small items to make your HiTorque lathe work better and last longer
Easier gib and saddle retainer adjustment
Quicker gear cover removal

The HiTorque Mini Lathe Tweaks & Enhancements Kit™ can make a big difference in the operation of your mini lathe. The kit includes the following: Hardened lathe chuck mounting nuts for long life. Self locking set screws for the cross slide and compound rest gibs Self locking cap screws for the carriage retainers Thumbscrews for the change gear cover. Complete instructions.

2634 Tweaks & Enhancements Kit, Mini Lathe

Several small items to make your lathe work better and last longer
Easier gib and saddle retainer adjustment
Fewer busted knuckles
Quicker gear cover removal
Fewer tailstock clamp jams

The Mini Lathe Tweaks & Enhancements Kit™ can make a big difference in the operation of your mini lathe. The kit includes the following: -Hardened lathe chuck mounting nuts for long life. -Self locking set screws for the cross slide and compound rest gibs -Self locking cap screws for the carriage retainers -Button-head cap screws for the cross slide and compound rest crank handles. -Thumbscrews for the change gear cover. -A spring for the tailstock clamp. -A rubber boot to protect the F/O/R switch on 7x10 and 7x12 mini lathes. -A rubber guard to prevent chips from getting into the motor speed control enclosure. -Complete instructions

2635 Tweaks & Enhancements Kit, Mini Mill

Several small items to make your mini mill work better and last longer
Easier gib adjustment
Fewer stripped locking levers
Easier backlash adjustment
Cleaner T-slots

The Mini Mill Tweaks & Enhancements Kit™ can make a big difference in the operation of your mini mill. The kit includes the following: Improved (German-made) locking levers for the X-, Y-, and Z-axes. Self locking set screws for the X-, Y-, and Z- axis gibs. Self locking adjustment nuts for the X-, and Y-axes. A T-slot cleaner Complete instructions

5069 Upgrade Kit, Mini Mill

Includes 2258 Air Spring Kit and 2560 Mini Mill Belt Drive Kit
Much quieter operation
Spindle speed up to 4300 RPM
Allows travel to the top of the column while providing better support for the mill head
No more broken drive gears

Do not buy this milling machine upgrade kit if you have a HiTorque Mini Mill. Most or all of these features are already included on the HiTorque mills. This mini mill kit provides an easy-to-install alternative to the noisy and fragile factory-installed gears that drive the spindle on the machine. The kit includes one belt. Change speeds without any tools. Simply remove the guard, loosen the lever locks and move the belt from one pair of pulleys to the other. Low speed range is 0-1700 RPM. High speed range is 0-4300 RPM. The small pulley has a 9 mm bore with a 3 mm keyway. The large pulley has a 30 mm bore with a 5 mm keyway. If your shafts don't match these values, then this belt drive will not fit your mill. Convert torsion spring mini mills to air spring. This mini mill kit provides all the parts required to change to a vertical air spring that mounts inside and above the column. With the air spring installed, you can move the mill head up until the top of the casting is almost flush with the top of the column. You can move it down until it almost contacts the adjustable Z-axis stop set in its lowest position. This air spring has about 35 pounds of force. This is not enough to totally support the head, but it is a heck of a lot more support than the torsion arm provides.