This double-edged 3D engraving router bit is a versatile tool for woodworking, with various sizes available to meet different needs. Features: 1. Double-edged cutting design for excellent concentricity 2. Suitable for use with acrylic, MDF, PVC, 3D engraving, and chamfering 3. Cuts decorative "V" grooves and lettering on signs; can be used with an edge guide for chamfering and beveling edges 4. Designed for engraving applications only, not intended for hazardous use 5. Available in multiple sizes to suit various projects Specifications: Material: Solid alloy Color: As shown in pictures Shank Diameter: 6mm Cutting Blade Diameter (Optional): 8mm / 10mm / 12mm / 15mm / 16mm / 18mm / 22mm / 25mm / 32mm Weight: 11–33g Quantity: 1 piece Package Included: 1 x V-Groove Sharpening Bit