1. Material: YG8 carbon and alloy steel; shape: V-groove; shank diameter: 8mm. 2. Cutting edge (diameter*angle): 22mm x 60°, 32mm x 60°, 22mm x 90°, 22mm x 120°. 3. The knife V-Slot Woodworking Grooving Router Bit is ideal for grooving many workpieces in woodworking projects. Good milling and cutting performance ensures high efficiency. 4. For use with edge guides for chamfers and bevels. The concentricity is very good, double-edged cutting design, the edge is sharp and the bottom leaves no debris. 5. For use with hand router tools, tabletop machines and CNC machines. Applicable materials: acrylic, MDF, PVC, 3D engraving and chamfering, etc. Specification: Shank Diameter: 8mm Knife Type: V Tip Cutting Edge (Diameter * Angle): 22mm x 60°, 32mm x 60°, 22mm x 90°, 22mm x 120° For use on: router machine, CNC router machine Material: Solid Carbide Package Content: 4 x V-Groove Router Bits