Cobalt Drill Bit 4mm
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Total length - 75.0mm
Flute length - 43.0mm
Point cut - from 3.0mm with split point DIN 1412C
Point angle - 130 deg
Surface - Golden Brown
Like HSS-G plus cobalt alloyed. The cobalt ensures increased heat resistance.
Application areas - for unalloyed and alloyed steel (up to a strength of 1100 N/mm2), hot and cold-working steel, reinforced and case-hardened steel and also steel resistant to rust and acid.