1)Perfect for rust and paint removal, deburring, descaling, finishing and polishing, this crimped wire wheel is a great item for any shop or garage. Long brass coated, crimped wire bristles power through materials to leave a smooth, bare surface ready for painting or polishing. This handy, versatile brass wire wheel comes with ten inserts to easily fit most grinders. 2)1-1/4" arbor with ten inserts for most grinders: 1", 7/8", 3/4", 5/8" and 1/2" 3)4500 RPM max 4)6" diameter, 1" face 5)Brass coated steel bristles are securely crimped in place