Material: The cutter is made of premium C3 micro-grain carbide, industrial grade router bits; Heat-resistant Teflon coating, anti-kickback and CNC balanced design Router Size: Bearing Diameter: 6mm Shank, Radius: 3.17mm, 3.96 mm, 4.76mm, 6.35mm Features---Chamfered bits are mainly used for edging, these bits can also be used to create miter joints of different angles. Excellent for combined plunge cutting and pattern/template routing. And it can be used without the bearing as a standard straight drill bit Application: suitable for wooden door frames, wooden window frames, cabinet frames. High abrasion resistance, high precision grinding technology, smoother chip removal Package contents: 4 x 6mm round shank drill bits Features: 1. Excellent for combined plunge cutting and pattern/template routing. 2. Allows the jig to be positioned on top of the workpiece. 3. In a router table, the model will be placed under the workpiece. 4. It can be used without the bearing like a standard straight bit. 5. For better visibility of the workpiece, please use the flush cutter in a portable router. Contents: 4 round router bits of 6 mm. Sold by the grid cool store