Gear, Spindle 45 Teeth, Micro Mill

The 45-tooth gear meshed perfectly with my micro mill's drive train, and the steel feels noticeably denser than the original plastic part. It took about 15 minutes to swap in, and now the spindle runs smoothly without any wobble.

Installed this 45-tooth gear on my Micro Mill and the fit was spot-on — no filing or adjustment needed. The brass teeth engaged smoothly with the drive gear right out of the packaging.

The 45 teeth mesh perfectly with my micro mill’s spindle, and the replacement was a drop-in fit—no filing or shimming needed. It’s got that solid, machined feel that makes me trust it won’t strip out mid-job. Exactly what I needed to get the mill running again.