Omi Bamboo Shoot Drill Silver Type 9 Steps 10mm TK521 1 Piece

Catalogue number: TK521 Features: ●One tool can be used to drill holes of various sizes. ●The main body is made of HSCO steel (cobalt high speed steel), which has excellent abrasion resistance and heat resistance. Specifications: ●Step width (mm): 5 ●Number of steps (steps): 9 ●Shank diameter (mm): 10 ●Drilling dimensions (φ): 5, 7, 9, 11, 13, 15, 17, 19, 21 ●Step thickness (mm): 5 ●Dimensions of each step (mm): 5, 7, 9, 11, 13, 15, 17, 19, 21 ●Effective cutting capacity: Stainless steel approximately 1mm thick, steel plate 2mm thick, resin 3mm thick Material/Finish: ●Cobalt high speed steel