Fangrui Product Details [product Specifications] 4 Wings Wood Cnc Router Bit: Shank: 1/2inch; Cutting Diameter: 2inch; Cutting Length: 1/2inch 3 Wings Wood Cnc Router Bits: Shank: 1/4inch; Cutting Diameter: 1 In; Cut Length: 1/4 In. ] Heat- Ptfe Coating, Industrial-grade Microcrystalline Carbide Cutter Head, High-quality Alloy Steel Cutter Body, The Cutter Has Excellent Wear Resistance And , And Has An Anti- Design. This Cnc Milling Cutter Is Designed For The High Quality Required For Woodworking Industrial Applications. Suitable For Wood, Mdf, Particle Board, Plywood, Composite Board, Laminate, Acrylic, Etc., Can Easily Cut Out The Groove You Want. This Bottom Clean Router Bit Is Not Only Great For Flattening Wood, Rebuilding Or Planing The Top Of Scrap Boards, But Also For Trimming And Grooving/grooving Note: Cannot Cut Metal And Non-wood Materials, Such As: Steel, Iron, Sand, Etc. For Cnc And Other Automatic Routers As Well As Handheld And Benchtop Portable Routers. Such As Woodworking Engraving Machine, Trimming Machine And