Description:* High quality carbide with sharp cutting, smooth rotation, operating lamp, favorable to machining, drilling is more efficient.* Suitable for materials: acrylic, MDF, pvc, 3D engraving and chamfering, etc* Steel, excellent rigidity, not easy to bend * High strength, bending resistance, wreck resistance * Double-edged cutting design, excellent concentricity Specification:Product name: 90 degree V groove reamer bit setBody Material: solid hardened steelBlade Material: Industrial Grade Carbide Shank: 1/4"/6.35mmCutting Diameter: 1/4", 5/16", 5/8",3/8", 1/2", 1"Length: 42-53mm Application: Veining, Chamfering and V Grooving. Package Included:1 x Bits for RouterNote:1. Due to the different monitor and light effect, the actual color of the item may be slightly different from the color showed on the pictures. Thank you!2. Please allow 1-5mm measurement deviation due to manual measurement.