Shank diameter: 8 mm; Cutting: 12.7mm (1/2") Cutting length: 50mm/63mm/76mm; Total length: 83mm/95mm/109mm. Ideal for professionals and hobbyists for ripping, cutting, texturing and grooving in all woodworking projects. Suitable for: It can be used to combine a variety of materials including solid wood, MDF, particle board, plywood and more. Precision: A high-quality router bit ensures professional and ultra-precise woodworking. Excellent quality: The durable yellow coating heat-resistant prevents the accumulation of sawdust and resin, and the sharp blade improves work efficiency and product quality. Name: Extended straight knife 8*1/2*50, 8 *1/2*63, 8*1/2*76 Package size: 120mm*17mm*17mm Shipped quantity: 3 pieces Note : The data are all manually measured, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.