Material: metal. Precise, smooth and detailed cutting, made of cemented carbide for long life, highly wear resistant and durable, longer cutting life. Material: Carbide Tipped Pack of 8° and 14° 1/2 inch dovetail router bits - Cutting diameter: 1/4", 1/2", 3/8", 5/8", 7/8" and 3/4" - Overall length: 52mm. Premium Tungsten Carbide Blades: Cutters can be sharpened. Features sealed bearings for smooth rotation and precise cuts. With rustproof coating on the blade head, these bits are durable and have a long life. Two flutes, 1/4" shank with shank mounted bearing guide. Chuck Cutter dovetail wood router. Ball bearing diameter wood drill. Wood milling machine drill bit with bearing diameter for dovetail joinery combination. For wooden door frames , wooden window frames, wooden door frames, cabinet frames Tenon set, great for woodworkers, hobby professionals. It is perfect for your woodworking projects for edging, trimming, spy and groove. They are professional DIY tools for carpenters and hobbyists. They are suitable for chipboard, MDF and soft wood. Can be used on CNC router bits and other automatic router bits, as well as manual router bits. and on desktop routers. Handle diameter: 6.35mm. Note: The data is manual measurement, please allow 1-68cm error, due to the light and screen differences, there will be a certain color difference, the specific received in kind prevail.