Products for bench top machinists | LittleMachineShop.com

Adapter, 4" Spindle to 6" Lathe Chuck (No Hole)

Adapter, 4" Spindle to 6" Lathe Chuck (No Hole) - Main image
$24.77 $39.95 In stock

This is a semi-machined adapter plate. The side that attaches to the lathe flange is fully machined. The side on which the lathe chuck mounts is not finished.

Mount the backplate adapter on your lathe and complete machining of the chuck-mounting side. This ensures two things; that it will fit your chuck, and that it is concentric on your lathe.

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

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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)

Elizabeth ★★★★★

Got it mounted on my lathe flange in about ten minutes since that side’s already machined true. The unfinished chuck side needed a careful skim cut to square up, but now my 6-inch chuck spins dead smooth.

Avery ★★★★★

Finally, an adapter that lets me use my 6" chuck on the 4" spindle without any guesswork. The lathe-side face is machined clean enough that it seated true on the first try, and the unfinished chuck side gives me room to dial in the fit myself. Took about an hour on the lathe to finish it, but now ev

Kevin ★★★★★

Machined face fits perfectly against my lathe flange, no wobble at all. Had to spend about 20 minutes with a file cleaning up the chuck side, but once it's true this adapter holds rock solid.