Industrial quality bit, C3 micro-grain tungsten carbide inserts, micro-grain carbide tips provide superior wear resistance and long life, solid hardened steel bodies with anti-kickback design, construction and heat-resistant Teflon coating. Can be used without bearings as a regular straight piece, perfect for combined plunge cutting and pattern/template milling. Cuts all composite materials, plywood, hardwood and softwood. For increased room visibility, use bar stock version in a handheld router that allows the model to be placed on top of the room. Package includes: 3 pieces 8mm shank versatile round over edge set. Product description Specifications: Shank: 8mm shank. Material: Hard alloy. Size: 1/8 inch R cutting diameter: 3/4 inch / 19 mm, total length: 2 inch / 51 mm. 1/4 inch R cutting diameter: 7/8 inch / 22 mm, total length: 2 inch / 51 mm. 3/16 inch R cutting diameter: 1 inch / 25 mm, total length: 2-3/16 inches / 55 mm. Package includes: 3 x 8 mm shank round router bit.