旋轉杯刷 — 硬毛，3/32 吋柄，用於清潔與拋光

These fit my rotary tool perfectly with no wobble at the 3/32 shank, and the stiff bristles actually hold onto the polishing compound instead of flinging it off. I got into the little recesses around a ring setting that my flat wheels always missed.

The 3/32 inch shank fits my rotary tool perfectly, no wobble at all. The stiff bristles splay into the crevices around prong settings where my flat wheels never reached, and they hold polishing compound well. Cleaned up a batch of tarnished rings in one sitting.

I've been using these on tarnish around prong settings, and the stiff bristles get right down in there where my flat wheels never could. The 3/32 inch shank fits my handpiece without any wobble, which hasn't been true of cheaper cups I've bought. Two of them have already earned a permanent spot on m