Dormer A777 HSS-E Cobalt Jobber Drill Bits

The Dormer A777 drill bits are designed for both professional and industrial use, offering reliable performance in high-stress environments. The 135° split point design reduces walking and ensures precise drilling, while the HSS-E cobalt construction extends tool life and maintains sharpness longer, even at high temperatures. Constructed from high-speed steel with 8% cobalt, these drill bits offer exceptional hardness, heat resistance, and wear resistance, making them ideal for demanding applications. Features & Benefits • High speed cobalt steel • Standard spiral flute design • DIN338 • Bronze finish • NAS907J • Right hand rotation/cutting • 135° point angle Specifications • Diameter: 4.1mm • Overall Length: 75mm • Quantity: 10