0940163 is a carbide burr set from JBC Tools. The set includes a variety of burrs in five different shapes (round, tree, cone, cylinder and flame) for use in all types of applications such as grinding, deburring, chamfering and porting. Each burr is made of high-grade carbide for long life and fast cutting. This set is also compatible with standard high-speed rotary tools, allowing you to use it on a wide range of materials such as wood, metal, plastic and composites.