STANDARD: Cutting edge diameter: 0.3mm or 0.012 inch Shank diameter: 3.175mm or 1 or 8 inch Cutting edge length: 2.6mm or 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 or 1.3mm or 0.9mm or 0.4mm or 2mm or 3mm or 1mm or 1.1mm or 0.6mm or 2.4mm or 3.175mm or 0.5mm or 1.5mm or 2.2mm or 1.6mm or 2.5mm or 1.2mm or 1.8mm or 0.8mm or 0.3mm Package Contents: 10x Router Bits Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.