Features 1、1/4IN(6.35MM) SHANK: Rotary burr file bit with 1/4in(6.35mm) shank, suitable for most high speed drilling power tools. 2、FOR LOW HARDNESS WORKPIECES: Woodcarving files are very suitable for low hardness workpieces, such as cork and plastic. 3、GRINDING, FORMING AND POLISHING: Rotary burr drill bits are suitable for woodworking and wood carving, such as grinding, forming and polishing cork, plastic and rubber surfaces or other DIY carving and woodworking. 4、OF SHARPNESS CUTTING EDGE: Adopt HSS material, improve wear resistance, possess of sharpness cutting edge, stable quality. 5、5PCS DIFFERENT SHAPES: The package contain 5pcs of rotary burr file bit with different shapes, which will meet your various using needs. Specification Item Type: Rotary Burr File Bit Material: High speed steel Shank Diameter: 1/4in Quantity: 5Pcs Application: Woodworking sanding Package List 5 x Rotary Burr File Bit