Diamond Drill Bits, High-Performance, Small

These professional-quality, diamond drill bits are designed for drilling cured concrete with medium to soft aggregate with or without steel reinforcement. They have a total segment height of .400" (10.160mm) (.300" (7.620mm) diamond depth and .100 (2.54mm) segment base. The standard bit length is 13" (330.200mm) and the integral thread adapter is 1.25"– 7 thread.