The Micro 100 16T648 is a carbide drill mill with a 1/4" shank diameter and a 1/2" cutting diameter. It has a TiAlN coating and can be used for a variety of materials including steel, stainless steel, cast iron, aluminum, copper, brass, bronze, plastic, and graphite. The drill mill has a 135 degree split point tip angle and is capable of high feed rates. The overall length is 2-1/2". This versatile drill mill is well-suited for a range of drilling, milling, and holemaking operations.