The Mercer 183020 8-inch x 3/4-inch Crimped Wire Wheel is constructed for even balance. The Mercer 183020 is made of carbon steel and has a 1/2-inch and a 5/8-inch fixture to fit most 8-inch grinders. Features: * Bristles are secured with a plate * Made of carbon steel * 5/8-inch and 1/2-inch What"s In The Box: * Mercer 183020 8-inch x 3/4-inch Crimped Wire Wheel