Repair damaged bolts & deburr metal bar. Size range: 13 - 35mm, speed 0 - 150rpm. Incorporates 5 tungsten blades, 9mm shank. Effective on stainless steel, hardened steel, mild steel, copper, brass, hardwood, fibreglass, hard plastic. Available as part of a set, please see Laser Part No. 7884 (set of 3 internal & external deburr/chamfer tools) & in a smaller size, Laser Part No. 7510 (3 - 19mm).