Metal Drill Bit Set Toughbox HSS-Co DIN 338 18pcs. Working L.12-87mm D.1-10mm BOSCH

The ground HSS twist drill drills metal with the highest precision. The self-centering drill bit with a cross-ground tip and a 135-degree point angle allows perfect centering without wandering. Thanks to the cross-ground drill bit, no pre-punching or pilot drilling is necessary up to 10 mm in diameter. This precision-ground drill bit made of HSS steel 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, malleable cast iron, non-ferrous metals, and hard plastics. The shank is cylindrical (the shank diameter corresponds to the drill bit diameter). It is used with drill presses and power drills. The ground HSS twist drill is manufactured according to DIN 338. It belongs to drill type N (small helix angle) with a 135-degree drill tip and h8 diameter tolerance. Diameter mm: 1.0 · 1.5 · 2.0 · 2.0 · 2.5 · 3.0 · 3.0 · 3.5 · 4.0 · 4.0 · 4.5 · 5.0 · 5.5 · 6.0 · 7.0 · 8.0 · 9.0 · 10.0 · Working length mm: 12 · 18 · 24 · 24 · 30 · 33 · 33 · 39 · 43 · 43 · 47 · 52 · 57 · 57 · 69 · 75 · 81 · 87 · Overall length mm: 34 · 40 · 49 · 49 · 57 · 61 · 61 · 70 · 75 · 75 · 80 · 86 · 93 · 93 · 109 · 117 · 125 · 133 · Set dimensions · Length mm: 180.0 · Set dimensions · Width mm: 85.0 · Set dimensions · Height mm: 45 · Set dimensions mm: 180.0 x 85.0 x 45 Further technical data: · Working length: 12 mm · Set dimensions: 180.0 x 85.0 x 45 mm