Pachatool provide carbide burrs of 1/4”(6 mm) and 1/8”(3 mm) shank diameter. which are offered in both imperial and metric sizes. They are used in various industrial processes, including metalworking, tool manufacturing, engineering, model engineering, wood carving, jewellery making, welding, chamfering, casting, deburring, grinding, porting cylinder heads, and sculpting.