Lathe Chuck, 3-Jaw 4"

Part Number: 1698
Weight: 6.63 lb

Price: $109.95

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This 4 inch 3-Jaw self-centering lathe chuck includes a chuck key, inside and outside jaws, and mounting bolts.

This chuck has a 0.87" (22 mm) through hole. The chuck can hold work up to 3.15" (80 mm) in diameter.

The radial runout of a test bar held in this chuck, when the chuck is mounted true, is 0.003" maximum.

Chris' Tips
Some people want a chuck that can hold larger diameters. 4" chucks work well on the mini lathe, but it is possible to use a 5" chuck on the mini lathe.

Mount this chuck on a mini lathe with one of our chuck adapters. Or purchase a chuck with an adapter already mounted.

Here are instructions for centering work in a 4-jaw chuck. It's easy if you follow this procedure.

Here is a chart that provides lathe chuck capacities and mounting dimensions.

Specifications
Rated Capacity, Inside Jaws	0.08" - 1.18" (2.0 mm - 30.0 mm)
Rated Capacity, Jamming Range	1.18" - 3.54" (30.0 mm - 90.0 mm)
Rated Capacity, Outside Jaws	1.18" - 3.15" (30.0 mm - 80.0 mm)
Practical Maximum Capacity, Inside Jaws	1.60" (40.6 mm)
Practical Maximum Capacity, Outside Jaws	3.75" (95.2 mm)
Runout (Max)	≤ 0.003" (0.08 mm)
Diameter, Overall	3.94" (100.0 mm)
Registration Recess Diameter	2.83" (72.0 mm)
Registration Recess Depth	0.14" (3.5 mm)
Bolt Circle Diameter	3.31" (84.0 mm)
Center Hole Diameter	0.87" (22.0 mm)
Height	2.17" (55.0 mm)
Jaw Height Above Face	0.79" (20.0 mm)
Height with Jaws	2.95" (75.0 mm)
Number and Size of Bolts	3 M8
Chuck Key	0.31" (8.0 mm)
Chuck Designation	K11-100

Compatibility

This product works with these LittleMachineShop.com products:

This product works with lathes with a 100 mm flange chuck mount including:

In your instruction manual, this part appears on the parts list as:

Item No	Models
179	LittleMachineShop.com 5100 HiTorque Mini Lathe - 7x16 LittleMachineshop.com 5200 HiTorque Mini Lathe - 7x16 LittleMachineShop.com 7350 HiTorque Mini Lathe - 7x16
233	LittleMachineShop.com 7450 HiTorque Mini Lathe - 7x16

Click your model to see the complete parts list.