Hitachi 3/8-in Twist Drill Bit
They significantly outperform the standard carbide glass and tile bits on the market today, both in speed of drilling and the number of holes that can be drilled per bit
This 3/8 In. glass and tile bit drills holes through glass, marble, class 5 porcelain, granite and slate
The bit features raised lips with diamond grit particles that are uniquely sintered in place using a patented process
