Fits: The core box router bits are designed for CNC and other automatic desktop portable routers and are the first choice for professionals and hobbyists. Application: The template router bits can cut all wood, MDF, particleboard, plywood, panel, cork and other synthetic woods. 3pcscore box router bits available: cutting diameter: 1 or 4inch, 3 or 8inch, 1 or 2inch cutting height: 1 or 2inch, 25 or 32inch, 25 or 32inch. Material: Grooving router bits are made of YG6 primary alloy, 45 number carbon steel, painted surface, durable. 3pcs 90 degree v-groove router bits available: cutting diameter: 1 or 4inch, 3 or 8inch, 1 or 2inch cutting height: 1 or 4inch, 3 or 8inch, 1 or 2inch. Grooving router bits are great for V-groove paneling, 3D engraving and chamfering, etc. V-groove and circular groove routers are great for grooving many workpieces in woodworking projects, for making signage or adding to furniture and trim decorative elements. Size: Shank: 1 or 4inch 6Pcs 90 Degree V-Groove Router Bits: Cutting Diameter: 1 or 4inch Cutting Height: 1 or 4inch Note: Manual measurement, please allow slight errors on size. The colors may exist slight difference due to different screens. Package Including 6 x Grooving router bit