Different Router Bits These 15 Pieces kit included Straight Bit, Cove Box Bit, 90 "V" Grooving Bit, Mortising Bit, Corner Round, Dovetail Bit, Cover Bit, Bearing Flute Trim Bit, 45Chamfer Bit, Panel Pilot Bit, Roman Ogee Bit. Variety of options to meet your needs. Universal 1/4" (6.35mm) Shank All the bits are 1/4 inch (6.35mm) shank that fits most of the router machines, woodworking trimming, tenon and carving every type of wood types of wood. High Quality Meterial Tungsten carbide blade with heat-treated for sharp cutting, durable to use and can be re-sharpened. Easy to Organize & Storage Comes with wooden case (with size iconography) for easy storage, organization and protect. Convenient to find the drill bit which you need during use. Wide Usage work great with all kinds of materials and surfaces, like woods, MDF, particle boards, plywood, panels, softwood, hardwood etc. Perfect for woodworking, edging, trimming, grooving, veining wood projects, and ideal for carpenters and hobbyists of all experience levels.