RUKO 215080 Pack de 10 brocas helicoidales DIN 338, tipo N HSS Co 5 Cobalto, rectificada, con autocentrado (Ø 8 mm)

Amazon

Diameter 8mm; Total Length 117mm; Spiral Length 75mm Special high-power cobalt-alloyed high-power speed steel drill bit with increased heat resistance and hardness, ideal for drilling difficult chip removal materials and for maximum strength Conical point grinding with split point according to DIN 1412 C, Weight: 0.7936641432 pounds, Manufacturer: Ruko

ManoMano

High performance steel twist drill bits with increased cobalt content Provides increased runout accuracy Cobalt content provides better heat resistance Performance drill bits for all drilling jobs in commonly drilled materials