HSS-Co 20 mm twist drill bit, professional drill bit for metals and stainless steel, DIN 338 standard

Precise drilling: Made of cobalt high-speed steel (HSS-Co), this drill bit has a 10 mm cylindrical shank and a 135° point angle, conforming to DIN 338 and BS 328 standards. Superior performance: Precision-ground drill bits with a 38° helix angle for optimal drilling results thanks to an enlarged flute. Robust and durable: High-temperature hardened (HRC 62–64) for high hardness and wear resistance. Suitable for most materials: Cobalt high-speed steel (HSS-Co) twist drill bits for professional machining of metals, stainless steel, cast iron, alloy steel, hard plastics, and wood.