Specifications:Product Name: V-Groove Router BitMaterial: Alloy CarbideCutting Degree: 30 DegreesShank Diameter: 6mm / 1/4 inchCutting Diameter: 10mm / 0.39 inchBlade Length: 21mm / 0.83 inchTotal Length: 71mm / 2.8 inchFeatures:1.Made of alloy carbide, it has sufficient bending resistance, no chipping or breaking. 2-edge design, standard angle, neat cutting.2.The V-shaped drill has a sharp cutting edge and the surface will not produce any faults, ensuring excellent engraving and milling performance.3.The depth of the pattern and the round, flat and pointed bottom can be controlled at will, and the processed product has a three-dimensional effect.4. Suitable for engraving, milling of marble, jade, guide tablets, calligraphy tablets, art stamps and other stone materials, and is suitable for various CNC stone engraving machines.