Shank Diameter: 8mm; Cutting Diameter: 1/2 inch (12.7mm); Cutting Length: 50mm/ 63mm/ 76mm; Total Length: 97.5mm/ 110mm/ 123mm. The bit is made of cemented carbide for high hardness and long service life; The main function is cutting, three-dimensional clearance angle, slotted. Top Bearing Router Bit Set Cuts all composting materials, MDF, solid wood, particle board, plywood, etc. Double-edged cutting design, excellent concentricity for fast, smooth and accurate trimming cuts for laminates and templates. Package Including: 3Pcs Extra Long Copy Router Bit.