旋鈕，高低速切換桿

Finally got around to swapping out the old shifter knob on my lathe, and this one fits the shaft perfectly with no wobble. The knurled grip makes it easy to turn even with greasy fingers.

My bench machine's high/low lever was getting sloppy, and this knob tightened everything right up. The fit on the shifter shaft is precise, no wobble at all once it's seated. Definitely worth the few bucks for a solid OEM-style replacement.

Replaced the old worn-out shifter on my mini lathe and this knob threaded on smoothly with no wobble. The knurled grip makes it easy to turn even with oily fingers.