Set of 12 pcs HSSCo drill bits 2 pcs each for M2,5,M3,3,M4,2,M threading.

Set of 12 pcs HSS-Co drills 2 pcs each for M2.5, M3.3, M4.2, M5, M6.8, M8.5 threading dies Art.Nr.ZESW012 CNC PROFI HSS-Co drills are drills, of the highest quality, which are made of HSS-Co high speed steel with 5% cobalt content. They also contain chromium and molybdenum, which increases the drill bit's resistance to abrasion and high temperatures. The drills have a hardness of 64 HRC and retain it at high temperatures. Professional cobalt drills are recommended for machining hard acid-resistant steel and for machining hard-to-cut steels. Designed for: machinable steels, cast iron, alloy steels, aluminum, stainless steel.