Durable Tip Design: Each bit is constructed with YC8 tungsten carbide tip that stays sharp and lasts long (Please receive the coupon code on the product page when purchasing to get a more favorable price. ) Body Design: Fully heat-treated shanks and bodies are designed for durability and bits can be resharpened Anti-Kickback Design: Each router bit is Featuring an anti-kickback design to prevent overpowering and help your router last longer and run smoother Usage: Perfect for your woodworking projects for edging, trimming, veining, tenon boring and grooving, professional DIY tools for woodworkers and hobbyists Application: Suitable for particle board, MDF board, hardwoods and softwoods; can be used on CNC and other automatic routers, as well as portable and table-mounted routers This 15-piece router bit set is designed to help you get the most out of your woodworking projects wood cutting. Stored in a wooden case for easy storage and transportation. Sealed bearings for smooth rotation and precise cuts. Strong hardened steel body with anti-kickback design. Heat treated for a clean cut, can be resharpened. Cooked on a heat resistant coating prevents buildup of sawdust, resin and pitch. Suitable for wood, MDF boards, hardwood and softwood. Usage: The product is drilled using a professional electric drill. HOT TIPS: Please always note that hot water needs to be added. cooling (like water) during use, the material temperature will rise or smoke due to long time operation. Color: Red + Silver Material: 45 high carbon steel + alloy Quantity: 15pcs Stem Diameter: 1/4: 6.35mm/0.25 Wooden Box Size:17.3 x 12.4 x 5.1cm/6.8x 4.9x 2 (L*W*H) Size: 12.7mm, R3.2mm, R6.3mm, 12.7mm, 6mm, 12mm, 12.7mm, 16mm, R9.5mm, 3mm, 29mm, 6.4mm, R6.3mm, 12.7mm, R4mm