Nut, Z-Axis Feed Screw CLEARANCE

The threads on this replacement nut are machined cleanly and fit my Z-axis perfectly—it's much smoother than the worn-out original. Definitely resolved my skipping issue on the X3 mill.

Installed this on my X3 mill and the difference in backlash is night and day. The threads engaged smoothly right from the start, no binding or roughness at all.

My old Z-axis nut had so much slop that the quill would drop a few thou on its own. This replacement is a perfect match for the feed screw, and the clearance fit feels just right when I tighten the gibs. Machine is holding depth much better on the last few parts I ran.