The Micro 100 Center Drill is a 7/64" diameter high speed steel center drill made in the USA. It has a straight shank, 118 degree split point tip, and is uncoated. The overall length is 2-1/2" and it is designed for center drilling applications in steel, cast iron, aluminum, brass, bronze and plastics. The center drill features a precision ground split point tip to help prevent walking. It can be used in automatic screw machines, turret lathes, engine lathes, milling machines and drill presses.