Hitachi 3/16-in x Standard High-speed Steel Twist Drill Bit
Bits feature raised lips with diamond grit particles that are uniquely sintered in place using a patented process
Constructed of hardened and tempered this wall alloy steel requiring water lubrication during use
Drill guide and water cooling system is sold separately and is comprised of a drill bit guide for the different sizes of bits and helps direct the bit into the exact spot
