Type D adapter shank enables compatibility with a wide range of power tools for versatile use
M42 8 cobalt construction delivers high red hardness and extended tool life
135° heavy-duty split point allows fast penetration and accurate drilling
Surface treated for enhanced durability in drilling tough, high tensile strength materials
Permits speeds up to 30% greater than conventional M2 high speed steel bits for increased productivity
Summarized by Shop
Threaded shank drill bits are type D adapter style. They are made from M42 8% cobalt and are manufactured to NAS 965 Type "D" specifications. They have 135º heavy duty split point and surface treated for drilling hard, tough, high tensile strength materials. When drilling low tensile strength materials, the Type "D" cobalt drill will have