GRAPHITE metal drill bits (Ref. 57H026-10) with a diameter of 4.2 mm are made of a high-quality alloy of high-speed steel M35 with a 5% addition of cobalt. The 135° apical angle and shear correction allow easy drilling of holes without scoring. Thanks to the high temperature resistance of the alloy, they are ideal for drilling holes in hard-to-machine materials such as stainless steel, acid-resistant steel, heat-resistant steel, etc.
Twist drill bits HSS-Co 4.2 mm, 10 pcs.
€13.02
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