Dormer A777 HSS-E Cobalt Jobber Drill Bits 15.5mm Pack of 1

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. Fe... - Manufacturers part numbers: A777155|A77715.5

• Heavy duty design - Recommended to be used for difficult materials and applications
• Premium HSCO material - Can be used for drilling hard materials including tool steels
• Improved accuracy - with more accurate holes and a better quality of finish
• Bronze oxide finish - Prevents work piece material from sticking to the cutting edge
• 284 degree split point - helps with self-centering and reduces the push force required