Wood drill bits, CrV steel, 1/4" hexagon shank to ISO 1173, E 6.3, accurately formed, chemical black, ground spirals, with centre point and 2 cutting wings, for accurate break-out free holes, for all cordless drivers and drills and bit holders with 1/4" hexagon drive to ISO 1173, for soft- and hardwoods More information: Features | Proper use | Drill |  | Drill bit diameter | 4 mm | | Length | 50 mm | | Suitable for materials | Hardwood, Softwood | | Shank diameter | 6.35 mm | | Working length | 40 mm | | Drill bit material | Chromium-Vanadium Steel (Cr-V) | | Shank shape | Hex shank | | Product colour | Stainless steel | | Number of cutting edges | 2 |
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