Dormer A777 HSS-E Cobalt Jobber Drill Bits

The Dormer A777 HSS-E Cobalt Jobber Drill Bits are top performers, engineered to produce accurate sized holes with a quality finish in high strength materials. Manufactured from high-speed steel with 8% cobalt content, these professional-grade drill bits excel when working with demanding materials including steel, cast steel, cast iron, and high-temperature alloys.

The 135° split point design helps the bit to self-centre, reducing walking and improving drilling accuracy from the first contact. The distinctive bronze finish is a thin oxide layer formed on the tool surface, serving as a visual indicator of the 8% cobalt HSS-E construction. Available in sizes from 0.3mm to 16mm and supplied in packs of 1, 5, or 10, these DIN 338 standard drill bits are suitable for both professional workshop environments and demanding home projects.

Features and Benefits
• HSS-E with 8% cobalt for enhanced heat resistance and extended tool life
• 135° split point for self-centring and reduced walking
• Bronze finish indicates premium cobalt content
• Cylindrical shank for secure chuck grip
• Right-hand cutting direction for standard applications