Features: *4 Different Sizes Round Groove Router Bits are suitable for making notches in many workpieces in woodworking projects for sign making or adding decorative accents to furniture and panels. *For different types of cuts such as cuts composition materials, plywood, soft wood, acrylic, MDF, PVC, 3D engraving and chamfer etc. *Wide range of applications, suitable for dense wood, laminate, chipboard and plywood. *1/4 inch tool holder is suitable for desktop router workbenches. Specifications: Product name: Router Bit Set Material: Metal Color: Green, Silver Size: Working length: A: 1-53/64, 1-47/64, 1-21/32, 1-3/4 B: 1.83in, 1-47/64, 1.69in, 1.75in Shank: 1/4, 6mm(Optional) Suitable for: Laminate, MDF, Veneered plywoods, Hardwoods, Softwoods. Applicable devices: Compact Router, EIectric Router, MiIIing Machine, CNC Machine Package Content: 4 x Router Bit Note: 1. Transition: 1cm=10mm=0.39inch. 2. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 3. Please allow slight manual measurement deviation for the data. EXCELLENT PERFORMANCE: Our products are severely tested for durability by the manufacturer before leaving the factory. QUALITY MATERIALS: Made from durable, premium quality materials that have been rigorously tested by the manufacturer. REASONABLE DESIGN: our products are carefully designed by designers, easy to use and ergonomic. ACCURATE SIZE: well-made, accurate size and precise fit of the equipment you need. SATISFACTION GUARANTEE: Like all SUKIY products, Please contact us with any questions or issues that you may have. We will be more than happy to assist you.