Bosch Professional Zubehör PRO Metal HSS-G twist drill bit set, 10 pcs.

10-piece HSS-G spiral drill bit set, Robust Line, 135°, 1 mm - 10 mm. Precision-ground drill bits for solid performance in standard metalworking tasks. Self-centering drill tip, cross-ground, point angle of 135 degrees, active drilling approach for perfect centering. Made from HSS steel for fast work. No center punching or pre-drilling required for diameters up to 10 mm. Diameters: Ø 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8 / 9 / 10 mm. The shank is cylindrical (the shank diameter matches the drill bit diameter). It is used with drill stands and drill screws. The precision-ground HSS spiral drill bit drills into metal with the highest accuracy. The self-centering drill tip with cross-ground and a point angle of 135 degrees allows for perfect centering without wandering. Thanks to the cross-ground drill tip, center punching or pre-drilling is unnecessary for diameters up to 10 mm. This precision-ground HSS drill bit drills 40% faster and requires 50% less feed force than conventionally ground HSS drill bits. It is suitable for drilling holes in alloyed and unalloyed steel, cast steel, cast iron, sintered iron, ductile iron, non-ferrous metals, and hard plastics. The precision-ground HSS spiral drill bit is manufactured according to DIN 338. It belongs to drill type N (small side cutting angle) with a 135-degree drill tip and diameter tolerance h8.