Products for bench top machinists | LittleMachineShop.com

Chuck Adapter, 1"-8 Thread 6" Diameter

Chuck Adapter, 1"-8 Thread 6" Diameter - Main image
$55.17 $79.95 In stock

Cast iron lathe chuck adapter fits a lathe with a 1"-8 spindle nose thread. This adapter is 6" (160 mm) in diameter and has no chuck mounting holes. Use it for all 6" chucks.

* These adapters require machining on the lathe on which they will be used. Instructions are included for final turning of the registration diameter on your lathe to ensure perfect concentricity.

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Customer Reviews (4.4 / 5 · 5 reviews)

Victoria ★★★★★

Cast iron construction feels solid and heavy on the lathe, threads onto the 1"-8 spindle perfectly without any wobble. I had to drill my own mounting holes, but that was expected and easy to do with a center punch.

Eli I. ★★★★★

The 6-inch diameter is perfect for my larger turning projects, and the 1"-8 thread threaded on without any wobble. Feels just as heavy-duty as my older metal chucks, so I’m confident it’ll hold up fine.

Harper C. ★★★★★

Threaded it onto my lathe spindle and it seated perfectly with no wobble. The 6-inch diameter matches my chuck exactly, and the cast iron feels reassuringly heavy.