The Spotting Drill Bit Carbide 1/2" is a carbide tipped spotting drill bit made by Allied Machine and Engineering. It has a 1/2" shank diameter and is 3-1/2" overall length. The drill bit has a 118 degree split point tip angle for faster penetration and cleaner holes. It is designed for use on steel, cast iron, hardened steel, alloy steels, tool steels, and stainless steel. The carbide tips provide wear resistance and durability. This USA-made spotting drill bit is ideal for precision hole drilling in metals.