3/8" Cobalt Short Threaded Shank Drill Bit Channable Exclude Part Number: BIT-T/A54728

Part Number: BIT-T/A54728

Part Number DWT57192

Part Number: 87C450HCS8Y

Part Number: 75C500BCG8PL

3/8" Cobalt Short Threaded Shank Drill Bit Channable Exclude Part Number: BIT-T/A54728Product Description 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 135 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 a significantly greater tool life than the NAS 965 Type B high speed steel adapter drill,