This is tungsten carbide drill bit with , which fits most pneumatic die . It ha sextensive use including , fabrication shops, aviation industry, brake shops, industrial shops, die manufacturers, metalwork, tool making, model engineering. Features - ColorSilver - Material: Carbide - Size: 5.10X0.60X0.30cm/2.00X0.24X0.12in - carbide rotary point burr set fits most pneumatic die - Carbide rotary burrs set,fits most,metal working and pattern making,die sinking,can process a variety of high-precision cavity, ,applies in the cast iron,cast steel,carbon steel,alloy steel,stainless steel,copper,aluminum,and other metals - Application: Carbide burrs for die drill, metal , drilling,cleans up welds or works with metal frequently, welding, chamfering, casting, deburring, grinding - Extensive use: Widely used in , fabrication shops, aviation industry, brake shops, industrial shops, die manufacturers, metalwork,tool making, model engineering - Manufactured from new tungsten carbide, unique tooth angle chipping for the longest . Package list: 1 x Tungsten Carbide Rotary Burr Set Tungsten Carbide Grinding Head Bits for Woodworking Drilling (Pattern A)