Drill bit HSS PRO Cobalt 4,5

Drills are made of high quality (HSS) steel, containing 5% of cobalt (Co). IRWIN HSS Cobalt metal cutting drills are designed to drill very solid materials (steel V2A, V4A, cast iron). Recommended to drill the materials the hardness limit of which is from

Manufacturer: IRWIN | Diameter, mm: 4.5 | Working Length, mm: 47 | Overall length, mm: 80 | Shank / chuck type: Straight | Standard: DIN 338 | For steel up to (N/mm2): 1100 | Drill tip angle: 135° | Surface: Yellowish tempered