I put it on the buffing machine along with this spoked wheel that I ordered. There weren't many options for a .75" shaft on a polisher. This wheel has a wide surface and does an excellent job of removing rust, which is my primary use of it. I run it at 1725 rpm, which is about what I use, although from what I recall it's fine up to 3600 rpm. My polisher has 2 speeds and I use the slower speed. This thing is big enough to create a pretty good breeze when in use. Use eye protection with this or any other cable. wheel, although I didn't have any wires hanging from it.