Products for bench top machinists | LittleMachineShop.com

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

Lathe Chuck - 4", 4-Jaw, Self-Centering - Main image
$118.36 $159.95 In stock

4 inch, 4-Jaw self-centering lathe chuck for square or octagonal work.

The through bore of this chuck is 20 mm (0.79").

This lathe chuck can hold work up to 80 mm (3.15") in diameter.

The radial runout of a test bar held in this chuck, when the chuck is mounted true, is 0.004" maximum.

*NOTE: * Note Don't forget to purchase a set of Studs & Nuts to accommodate changes in chuck or adapter configurations. 

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Samuel Y. ★★★★★

Setting up square stock on this 4-jaw chuck is surprisingly quick, and the self-centering action locks it in place with no wobble. I've been using it for octagonal workpieces and the grip feels solid even at higher speeds.

Andrew ★★★★★

The 20mm through bore is a real plus for my longer stock, and it centers square stock dead-on without any wobble. I've only had it a week, but the grip on 3-inch pieces feels rock solid so far.

Victoria ★★★★★

Swapped out the old 3-jaw for this 4-jaw and square stock sits dead true now, no shimming needed. The jaws grip an 80 mm octagonal piece without any wobble, and runout stayed under a thou right out of the box.