زنبرك، عمود الريشة

Finally got around to swapping the old return spring on my X1 Micro Mill, and this one fits the bore perfectly. The tension feels just right for smooth quill travel without any binding. Money well spent for a direct replacement part.

Installed this spring in my X1 Micro Mill and the quill return is now smooth and consistent again. The fit was exact, no modification needed. Much better than trying to reuse the old worn-out part.

The return action on my X1 Micro Mill feels solid again after swapping this spring in, and it fit the quill assembly without any filing or fuss. Installation took me about ten minutes, and the drop and retract cycle is smooth every time now.