Description: Sanding cones smooth out hard to reach places. This 52-piece cone set features 80 and 120 grit bits and tough carbon steel shanks that allow you to port and polish your engine. The sanding cone set includes two arbors, 10 tapered 80 grit bits and 10 tapered 120 grit bits. Sanding cone- and cylinder-shaped abrasives reach into tight spaces Make your old parts look like new Tapered 2 in. x 1/2 in. bits in 80 and 120 grit Carbon steel shanks with black oxide coating