Features 1、These burrs are made of high speed steel for high hardness, high abrasion resistance and high heat resistance 2、There are total 20 pieces single cut burrs in various shapes and sizes that you can use for many purposes 3、1/8 inch round shank would fit many electric powered or pneumatic powered tools and machine tools 4、This set of rotary burrs could be used on wood, plastic and many other soft materials 5、Widely used for carving, shaping and for the removal of sharp edges or corners, burrs and excess material Specification Features: These burrs are made of high speed steel for high hardness, high abrasion resistance and high heat resistance. There are total 20 pieces single cut burrs in various shapes and sizes that you can use for many purposes. 1/8 inch round shank would fit many electric powered or pneumatic powered tools and machine tools. This set of rotary burrs could be used on wood, plastic and many other soft materials. Widely used for carving, shaping and for the removal of sharp edges or corners, burrs and excess material. Specifications: Material: High speed steel Color: As Picture Round Shank Diameter: 3.1mm(1/8") Length: 39mm(1.53") Quantity: 20pcs Package Includes: 20 x Burrs Package List