This Bosch PRO HSS-Co Cobalt Drill Bit is a 4.2mm diameter bit, supplied in a pack of 10 — a specific size often required for tapping and clearance applications in stainless steel and other metals. The ten-pack keeps a ready supply available throughout the job. Fully ground from HSS with 5% cobalt for excellent resistance to heat and wear. The centring tip allows accurate, no-wander hole starts, improving precision and reducing waste. Features and Benefits: • 5% cobalt HSS for superior heat and wear resistance • Centring tip for accurate, no-wander hole starts • Cylindrical shank compatible with three-jaw drill chucks • Pack of 10 keeps you productive on repeat tasks Specifications: Diameter (D) mm: 4.2 Total length (L2) mm: 75 Working length (L1) mm: 43 Net Weight of the product: 0,089 KG Contents: • Pack of 10

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