Features Not Easy to Damage: High strength, bending resistance, router bit is not easy to damage, reliable and durable. Package Include: Cut with two edges for excellent concentricity, the milling tenon cutter including 3pcs drill bit of the package. Premium Material: Adopt high quality material, firm and durable, long service life, router bit is suitable for wood working. Convenient and Practical: Very practical, milling tenon cutter is especially suitable for woodworking, wonderful replacement tool. Easy to Use: Small size, easy to carry and store, router bit is easy to use, practical, 6mm shank size. Specification: Item Type: Milling Cutter Bit Material: Tool head YG6 alloy, tool body 45# carbon steel, surface spray plastic Diameter of Ball Head: Approx.  13mm / 0.5in 19mm / 0.7in 28.5mm / 1.1in Shank Diameter: Approx. 6mm / 0.2in Package List: 1 x 13mm Cutter Bit  1 x 19mm Cutter Bit  1 x 28.5mm Cutter Bit  Package List 1 x 13mm Cutter Bit 1 x 19mm Cutter Bit 1 x 28.5mm Cutter Bit