Sealey HSS Cobalt Drill Bit

This 12mm HSS Cobalt drill bit is essential for workshops undertaking substantial metalwork. The 12mm diameter is commonly used for M14 clearance holes, large structural brackets, and heavy-duty fabrication in high carbon and stainless steel. The cobalt content ensures exceptional heat hardness, maintaining cutting performance even under demanding drilling conditions. Supplied in a pack of 5 with a durable storage case. Features and Benefits: • 12mm diameter for M14 clearance holes • 5% cobalt increases heat resistance • 135° split point for accurate starting • Pack of 5 bi