Material: carbon steel and YG8 alloy; Shape: V-groove; Shank Diameter: 8mm. Cutting Edge (Diameter*Angle): 22mm x 60, 32mm x 60, 22mm x 90, 32mm x 90, 22mm x 120, 32mm x 120. V Groove Woodworking Grooving Cutter is ideal for grooving in many parts in woodworking projects. With good milling, cutting performance ensures high efficiency. Use with edge guide for chamfer and bevel edges. Very good concentricity, double edge cutting design, sharp edge, the bottom does not leave crumb residue. Used for hand router tools, table mounted and CNC machines. Suitable for materials: Acrylic, MDF, PVC, 3D engraving and chamfering, etc. Product Description Features: Housing: Solid hardened steel. Blade: Industrial grade micrograin carbide Cutter: CNC base to 600 mirror type surface. Shank diameter: 8mm. The dimensions of the 6 bits are as follows : 8 x 22 x 60 --- Cutting diameter: 22 mm. Grade: 60 8 x 32 x 60 --- Cutting diameter: 32 mm. Degree: 60 8 x 22 x 90 --- Cutting diameter: 22 mm. Degree: 60 8 x 32 x 90 --- Cutting diameter: 32 mm. Degree: 60 8 x 22 x 120 --- Cutting diameter: 22 mm. Grade: 60 8 x 32 x 120 --- Cutting diameter: 32 mm. Degree: 60