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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.

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
$52.95
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
$18.95
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
$79.95
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)
$47.95
Analog Conversion Kit, Bench Lathe Compound Rest
  • Replaces the compound rest DRO with 0.001" graduated dials
$42.95
Analog Conversion Kit, Bench Lathe Cross Slide
  • Replaces the cross slide DRO with 0.001" graduated dials
$55.95
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)
$47.95
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
$199.95
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
$149.95
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
$139.95 On Sale

Regularly $149.95

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
$125.62
Control Box Assembly, 7x14 Mini Lathe
  • For 7x14 Mini Lathe
  • 120V 60Hz input
$285.95
Control Box Assembly, Mini Lathe
  • For 7x10 and 7x12 Mini Lathe
  • Incorporates XMT-1125 controller
  • 120V 60Hz input
$229.95
Control Box Assembly, Mini Mill
  • For all Mini Mills with conventional DC drives
  • Saves complicated rewiring for updated controller board
  • 120V 60 Hz input
$292.95
Control Panel Upgrade Kit, Bench Lathe
  • Complete new control panel
  • For 3536, 3540 bench lathes
  • Includes motor controller
$584.95
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.
$95.95
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
$95.95
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
$95.95
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
$95.95
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.
$49.95
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".
$65.99
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.
$61.20
Feed Screw Parts, Metric, Bench Lathe
  • Fits HiTorque Bench Lathe
  • Fits SIEG C4 and SC4 lathes
$87.99
Feed Screw Parts, Metric, HiTorque Bench Mill
  • For models 5500, 6500
$149.95
Feed Screw Parts, Metric, HiTorque Bench Mill Deluxe
  • For models 5550, 6550
$149.95
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.
$124.95
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.
$71.28
Gib, Mini Lathe, 150 mm/120 mm, Brass (Pair)
  • Brass gib for cross slide
  • Brass gib for compound rest
$29.95
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
$69.95
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
$599.95
Long Table Kit, Bench Mill
  • Extra long table for Bench Mill, X2.7 and SX2.7 mills
$289.95 On Sale

Regularly $349.95

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
$99.95
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
$99.95
Long Table Kit, Super X3L -
  • Extra long table for X3 SX3 mills
$239.95
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
$259.95
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
$67.95
Metric Threading Kit 10"
  • Metric threading kit for 7x10 mini lathes
  • Fits HiTorque, SIEG, and other 7x10 mini lathes
$59.95
Metric Threading Kit 12"
  • Metric threading kit for 7x12 mini lathes
  • Fits HiTorque, SIEG, and other 7x12 mini lathes
$66.95
Metric Threading Kit 14"
  • Metric threading kit for 7x14 mini lathes
  • Fits HiTorque, SIEG, and other 7x14 mini lathes
$69.95
Metric Threading Kit 16"
  • Metric threading kit for 7x16 mini lathes
  • Fits HiTorque, SIEG, and other 7x16 mini lathes
$66.95
Mini Lathe Deluxe DRO Kit
  • Digital Readouts for cross slide and compound rest
  • Metal hand wheels and chrome levers
  • All metal change gears
$385.95
Power Feed, 6500 Bench Mill - Standard Table (23.5" x 5.5")
  • Fits 5500 & 6500 HiTorque Bench Mills (SIEG Sx2.7)
  • Clutch disengages power feed when not in use
  • Adjustable limit switches restrict travel
  • 120-240V 50-60Hz
$446.95
Power Feed, Bench Mill - Long Table (27.5" x 6.25")
  • Fits 5550 & 6550/6570 HiTorque Bench Mills (SIEG Sx2.7L)
  • Clutch disengages power feed when not in use
  • Adjustable limit switches restrict travel
  • 120-240V 50-60Hz
$424.95
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
$424.95
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
$419.95
Power Feed, X3 & SX3 Mills
  • Fits X3 and SX3 Mills, Grizzly G0463 and G0619
$349.95 On Sale

Regularly $429.95

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
$4.95
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
$259.95
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
$59.95
Spindle Conversion Kit, R8
  • This kit converts a Grizzly or Micro-Mark mini mill to an R8 spindle
$84.38
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
$156.00
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.
$29.95
Telescoping Lead Screw Cover, 7x10, 7x12
  • All metal construction
  • Works with threading dial
$79.95
Telescoping Lead Screw Cover, 7x14, 7x16
  • All metal construction
  • Works with threading dial
$84.95
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
$25.36
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
$23.95
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
$69.95
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
$38.95
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
$32.95
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
$58.95
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
$199.95