The Micro 100 Micro Drill Bit is a 1/8 inch diameter high speed steel drill bit with a straight shank. It has a 135 degree split point tip for faster penetration and cleaner holes. The bit is made in the USA and has an overall length of 2-1/2 inches. It can drill through materials like steel, cast iron, aluminum, copper, brass, plastic and wood. The bit features a bright finish for increased workpiece visibility.