Bosch PRO HSS-Co Cobalt Drill Bit

The Bosch PRO HSS-Co Cobalt Drill Bit is engineered for long-lasting performance in stainless steel and other demanding metals. Made from fully ground high-speed steel (HSS) blended with 5% cobalt, these bits deliver exceptional wear resistance, heat protection, and surface quality — even under heavy use.

Equipped with a precision centring tip, they start holes exactly where needed without wandering, ensuring clean, accurate results every time. The cylindrical shank is compatible with standard three-jaw drill chucks, and the bits are suitable for use in drill stands and drill drivers. Ideal for construction workers and installers tackling alloyed and non-alloyed steel, cast iron, cast steel, and acid- and heat-resistant steels. Available in sizes from 1mm to 13mm, sold in packs of 1, 5, or 10.

Features and Benefits:
• Fully ground HSS with 5% cobalt alloy for superior wear and heat resistance
• Precision centring tip prevents wandering for accurate hole placement
• Two cutters and two flutes for fast chip removal and extended bit life
• Cylindrical shank compatible with three-jaw drill chucks
• Manufactured to DIN 338, Type N flute angle, 135-degree tip, diameter tolerance h8
• Suitable for stainless steel, alloyed/non-alloyed steel, cast iron, cast steel, and acid- and heat-resistant steels