Bosch PRO HSS-Co Cobalt Drill Bit 4.2mm Pack of 10

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Bosch PRO HSS-Co Cobalt Drill Bit 4.2mm Pack of 10

When precision matters in metalworking, this Bosch PRO HSS-Co Cobalt drill bit delivers the durability and heat resistance needed for demanding tasks. Designed specifically for the 4.2mm diameter often required for tapping and clearance applications, this pack of ten ensures you always have the right bit on hand for repetitive or production work. The cobalt alloy construction provides exceptional hardness and wear resistance, allowing clean, accurate holes in tough materials like stainless steel, hardened steel, and non-ferrous metals.

- Diameter: 4.2mm, ideal for pre-drilling tapping holes and clearance fits

- Material: High-speed steel with 5% cobalt content for superior heat resistance and extended cutting life

- Self-centring tip reduces walking and ensures precise starts without a centre punch

- 135-degree split point design for faster penetration and reduced thrust

- Fully ground profile for consistent accuracy and smooth chip evacuation

- Suitable for use on steel, stainless steel, cast iron, and non-ferrous alloys

- Pack of 10 offers excellent value for professional and serious DIY users

- Compatible with hand drills, pillar drills, and CNC machines

Whether you are preparing threads in stainless steel or working on precision assemblies, these Bosch PRO bits maintain sharpness and stability throughout the job.

GTIN: 3165140521178