Standard: Cutting Edge Diameter: 0.3mm / 0.012 Inch; Shank Diameter: 3.175mm / 1/8 Inch; Cutting Edge Length: 2.6mm / 0.1 Inch. Material: Use Of Ultra-fine Grain Carbide Material With Good Milling And Cutting Performance, Ensure High Work Efficiency. Features: High Hardness, High Wear Resistance, High Strength. Have Sufficient Bending Strength And Wear Resistance. Characteristics: Sharp Cutting Edge, Milling, Hole And Plate Edge, Surface Clean, Neat, No Glitches. The Longer The Length Of The Tool Clamped By The Chuck, The Better. Application: Can Engrave Pcb, Cnc, Circuit Boards, Metal, Plastics, Wood, Smt, Fiber Glass, Carbon Board. Combined With The Material To Be Processed, Select An Appropriate Feed Rate And Cutting Speed To Improve The Tool Life. Color: As Shown Material: Alloy Size: 1.4mm / 1.3mm / 0.9mm / 0.4mm / 2mm / 3mm / 1mm / 1.1mm / 0.6mm / 2.4mm / 3.175mm / 0.5mm / 1.5mm / 2.2mm / 1.6mm / 2.5mm / 1.2mm / 1.8mm / 0.8mm / 0.3mm Package Contents: 10* Router Bits Only The Above Package Content Easy To Clean And Maintain