Step drill bit size 2, 4-30mm HSS TiN+spiral flute+hex shank, 14 steps+cross grind

The deep-ground, spiral flute ensures absolute running smoothness and high cutting performance. Non-breaking chips, in particular, are cleanly removed as with a twist drill. This reduces the formation of built-up edges and cold welding on the cutting edges. The taper facilitates retraction when drilling through sheet metal. 4.0 - 12.0 mm / 4.0 - 20.0 mm / 4.0 - 30.0 mm Further technical features: · Point angle: 118° · Step angle: 90° · Ø: 4.0 - 30.0mm · Cutting material: HSS · Size no.: 2 · Shank: Bit shank · Point grind: Form C: Split point · Cutting direction: right-hand cutting · Tolerance: Factory standard · Main applications: Steel (N/mm2) · Secondary applications: Steel (N/mm2) < 1100, stainless steel, bronze, cast iron