Products for bench top machinists | LittleMachineShop.com

Compound Rest Bottom, Mini Lathe, Drilled & Milled, 20 TPI

Compound Rest Bottom, Mini Lathe, Drilled & Milled, 20 TPI - Main image
$28.95 $45.95 In stock

This is the bottom half of the compound rest on the 20 TPI mini lathe. Fits Micro-Mark mini lathes and HiTorque 4200 mini lathe.

The thread is 20 TPI so the compound advances 0.050" per revolution. Use with a dial that has 50 divisions.

This part has a second set of holes that moves the center of rotation of the compound rest to help eliminate chatter. Use the holes nearest the end of the part.

This part is also about 1/4" thinner than the standard part. This makes it possible to mount AXA or Series 100 tool posts on the mini lathe. Do not expect to use this without a quick-change tool post of some sort. It will place the standard tool post about 1/4" too low.

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Customer Reviews (4.4 / 5 · 5 reviews)

Joseph ★★★★★

Installed this on my mini lathe last night and the 20 TPI threads meshed perfectly with the leadscrew—no slop at all. The advancement per revolution is exactly 0.050" as stated, making precise cuts much easier to dial in.

Alexander N. ★★★★★

The threads are cut clean and true, so the compound slides smoothly with zero play once mounted. I swapped out the old worn part on my 4200 and it fits perfectly, advancing exactly 0.050" per turn as advertised.

Samuel G. ★★★★★

The threads on this bottom rest are cut clean and mesh perfectly with my mini lathe’s compound—advancing exactly 0.050" per turn just as described. The drilled and milled surfaces fit snug without any wobble. Took a bit of wiggling to seat it, but once in, it’s rock solid.