Products for bench top machinists | LittleMachineShop.com

Feed Screw Kit, 20 TPI, Mini Mill

Feed Screw Kit, 20 TPI, Mini Mill - Main image
$58.36 $79.95 In stock

These parts change Grizzly, Homier, Cummins, and Harbor Freight mini mills to 20 thread per inch feed screws on the X- and Y-axis.
Each rotation of the hand wheel will advance the table 0.050".
The mini mill tool kit includes two feed screws, two nuts, two 50 division dials, plus the springs and keys that you are going to lose during disassembly.
This mini mill conversion kit has the correct screw to work with the mini mill power feed.

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Customer Reviews (4.8 / 5 · 5 reviews)

Jason ★★★★★

After struggling with backlash on my mini mill for months, these 20 TPI feed screws finally give me the precision I need—each rotation advances exactly 0.050", which makes dialing in cuts so much more predictable. Installation was straightforward and the difference in feel is night and day.

Hazel ★★★★★

Putting these in took an afternoon, but the 0.050" advance per rotation makes dialing in cuts feel far more precise than the stock setup. The 20 TPI threads mesh smoothly with the hand wheels, and I noticed zero backlash after snugging everything down. Definitely worth the upgrade for any mini mill

Michael V. ★★★★★

I swapped these into my HF mini mill and the 0.050" per rotation makes dialing in cuts way more predictable. The threads engage smoothly without any binding.