Features 1、These burrs are made of carbon steel for high hardness, and abrasion resistance. 2、There are total 5 pieces single cut burrs in various shapes that you can use for many purposes. 3、1/4 inch shank would fit many electric powered or pneumatic powered tools and machine tools. 4、This set of rotary burrs could be used on wood, plastics and light alloys. 5、Widely used for carving, shaping and for the removal of wood surface. Specification Description: This burr set is made of high quality carbon steel, sturdy and durable, and can be used on wood, plastics and light alloys. Various shapes that you can use for many purposes. Features: These burrs are made of carbon steel for high hardness, and abrasion resistance. There are total 5 pieces single cut burrs in various shapes that you can use for many purposes. 1/4 inch shank would fit many electric powered or pneumatic powered tools and machine tools. This set of rotary burrs could be used on wood, plastics and light alloys. Widely used for carving, shaping and for the removal of wood surface. Specification: Material: Carbon Steel Surface treatment: Nitride black Color: Black Shank diameter: Approx. 6mm /0.2inch Quantity: 5pcs Package Included: 5 x Burrs Package List