Lathe Chuck, 6-Jaw 4", Self-Centering 

Lathe Chuck, 6-Jaw 4", Self-Centering
  • 6-jaw self centering lathe chuck
  • 4" (100 mm) diameter
  • Includes chuck key and mounting bolts
  • Plain back mounting
  • Excellent for holding thin walled workpieces
Part Number: 2276
Weight: 6.40 lb

Price: $249.95

In stock
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The jaws on this 4" 6-Jaw self-centering lathe chuck are hardened and ground.

Includes chuck key and mounting bolts.

Because the chuck is designed to hold tubing, outside jaws are not included.

This chuck has a 1.02" (26 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 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.

Rated Capacity, Inside Jaws 0.24" - 1.18" (6.0 mm - 30.0 mm)
Rated Capacity, Jamming Range 1.18" - 3.54" (30.0 mm - 90.0 mm)
Rated Capacity, Outside Jaws 1.18" - 3.54" (30.0 mm - 90.0 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 1.02" (26.0 mm)
Height 2.13" (54.0 mm)
Jaw Height Above Face 0.79" (20.0 mm)
Height with Jaws 2.91" (74.0 mm)
Number and Size of Bolts 3 M8
Chuck Key 0.31" (8.0 mm)
Chuck Designation K13-100


This product works with these products:

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

  •   Northern Tool 49656 KLUTCH 7x12 Mini Lathe
  •   Big Dog BD-0618Ax300 7x14 Mini Lathe
  •   Big Dog BD-0618x300 7x14 Mini Lathe
  • 5200 HiTorque 7x16 Mini Lathe
  • 5100 HiTorque 7x16 Mini Lathe
  • 7350 HiTorque 7x16 Mini Lathe
  • 7450 HiTorque 7x16 Mini Lathe
  •   MX-8x14 Preenex (and others) 8x14 Lathe
  •   Harbor Freight 44859 Central Machinery 8x12 Precision Mini Lathe
  •   Grizzly G0768 8x16 Benchtop Lathe
  • 3536 HiTorque 8.5x16 Bench Lathe
  •   SIEG C4 8.5x16 Bench Lathe
  •   SIEG SC4 8.5x16 Bench Lathe
  •   Travers Tools OT218410 OTMT 8x16 Bench Lathe
  • 3540 HiTorque 8.5x20 Bench Lathe
  • 3595 HiTorque 8.5x20 Deluxe Bench Lathe
  • 7500 HiTorque 8.5x20 Bench Lathe
  • 7550 HiTorque 8.5x20 Deluxe Bench Lathe