Description: *High-grade carbide with cutting, smooth rotation, operating light, beneficial for machining, drilling is more efficient. *Suitable for materials:Acrylic,MDF,PVC,3D engraving and chamfer,etc *Steel,excellent rigidity,not easy to bend the *High strength,resistance to bending,resistance to wreck *Double-edged cutting design,excellent concentricity Specification: Product Name: 90degree V Groove Router Bit Set Material of Body: Solid Hardened Steel Material of Blade: Industrial Grade Grain Carbide Shank: 1/4"/ 6.35mm Cutting Diameter: 1/4", 5/16", 3/8", 1/2" Color:random Length:42-53mm Application: Veining, bevelling and V grooving. Package Included: 4 x Core Box Router Bits Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-5mm measuring deviation due to manual measurement. 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.