ITEM NAME:10Pcs 20 Degree 0.1mm Tip Tungsten Steel PCB Engraving Bits CNC Router Tool Description: - CNC engraving machine bits, set of 10. - Made of tungsten steel, High hardness, high wear resistance, high strength, resistance to bending, anti-impairment and long tool life. - It is suitable for carving, grinding and polishing glass, ceramic, crystal stone, marble, granite, monocrystalline silicon and magnetic materials. - Can be carved, carved on the plane, sphere, and concave surface of the above objects. The depth of the pattern and the round, flat, and pointed bottom can be freely controlled. The processed product has a three-dimensional effect. - Shank diameter: 3.175mm /0.125 inch; Cutting edge diameter: 0.1mm Specification: - Material: Tungsten Steel - Color: Silver Grey - Shape: V-shape - Degree: 20 Degree - Shank diameter: 3.175mm - Length: 30mm - Cutting edge diameter: 0.1mm Package Included: 10 Pieces Tungsten Steel Engraving Bits Note: Color maybe slightly different due to different monitor. The above size is measured by hand, please allow slightly difference. Thanks !.CNC engraving machine bits, set of 10. 10 Pieces Tungsten Steel Engraving Bits. - Material: Tungsten Steel. - Can be carved, carved on the plane, sphere, and concave surface of the above objects. - Degree: 20 Degree.