1/8 Inch Collet, 54000 RPM, Straight Handle, Rear Exhaust Air Die Grinder Repair Kits: generally consist of wear parts such as o-rings, springs & veins Contents: O-Ring 560004; Spring 560005; Pin 560006; (3) Rotor Blades 560013 Rebuild Kits: generally consist of major parts such as bearings, gears & spindles Contents: Cylinder 560014; Rotor 700015; Collet 560021; Clamping Nut 700025 When rebuilding air tools, it is good practice to use all of the new parts from both the Rebuild Kit and the Repair Kit. Rebuild Kit for 1/8" Pencil Die Grinder