Material: YG8 alloy cutter head, 45# carbon steel cutter body, sprayed surface. High-quality material: High-quality fine-grained cemented carbide tools can cut most materials, and fine-grained cemented carbide can extend the service life of our products., The performance is very durable . Ultra-precision: Our products are manufactured very finely, so our products can cut wood edges accurately and smoothly, and they are very neat and beautiful. Double-edged cutting design: excellent concentricity, fast, smooth and precise cutting of laminates and stencils. Wide applicability: Our products are suitable for most automatic routers and portable and desktop routers. A wide range of cutting materials: Our products are made of cemented carbide, which has very good hardness and can cut most materials, such as composites, plywood, hardwood and softwood. Delivery quantity: set of 4