Specification: Notice: sizes=shank diameter*blade diameter(inch) Application: handheld trimming machine, cnc milling machine etc. Blade material: Cemented Carbide Cutting material:solid wood,medium density fiber-board, flake-board, anti-fold special plate, splint etc. High precision, compatible with sharp and durable, high efficiency, smooth cutting Color: Silver Application: For shelving and cupboard projects and for countless other simple straight cut applications Package included: 1 x Round Bottom Router 1/4" or 1/2'' Shank, 23 Sizes Cutting Diameter for Choose Round nose router bits for cutting, beading, fluting and general ornamentation. Cuts all composition materials, plywoods, hardwoods and softwoods. Use on CNC and other automatic routers as well as hand-held and table-mounted portable routers. Blade Material: Cemented Carbide; Cutting material:solid wood,medium density fiber-board, flake-board, anti-fold special plate, splint etc.