軸，Z軸微進給通用型

Knob threads on cleanly and the shaft engages the Z-axis without any slop, so the fine feed feels much more precise now. Took about ten minutes to swap out on my mini mill.

The Z-axis fine feed knob threads onto this shaft cleanly, no wobble or binding once it's seated on the mill. It's a solid, precise piece that makes manual depth adjustments feel much more controlled.

Installed this on my mini mill after fighting with a wobbly original shaft — the fit was spot-on and the threads feel much smoother than the stock part. Definitely worth it for the price.