General description C3 micro-grain tungsten carbide blades are used in this 8mm Adjustable 3 Wing Router Bit Set, which features a high-quality alloy steel body designed with an anti-kickback mechanism. This set includes five sizes of slot cutters, making it ideal for woodworking and milling applications. Technical specifications Blade materials: C3 micro-grain tungsten carbide Body material: High-quality alloy steel Shank size: 8mm Bearing size: 22mm (7/8") Slot cutter sizes: 2.38mm, 3.17mm, 4.36mm, 4.76mm, 6.35mm Usage This router bit set is perfect for creating panel slots in stile and rail cabinet doors. It is important to use one cutter at a time to ensure optimal performance and avoid damage. Other information Important: Stacking cutters without staggering the blades and providing adequate support can lead to bending and warping of the body when tightening.