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: Made from ultra-fine grain carbide material for excellent milling and cutting performance, ensuring high work efficiency. FEATURES: High hardness, high wear resistance, high strength, with sufficient bending strength and durability. CHARACTERISTICS: Sharp cutting edge provides clean, neat results on holes, edges, and surfaces with no chipping or burrs. For optimal performance, ensure proper tool clamping length in the chuck. APPLICATION: Suitable for engraving PCBs, CNC machining, circuit boards, metal, plastics, wood, SMT, fiberglass, and carbon board. Adjust feed rate and cutting speed based on the material to maximize 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 x Router Bits Note: Light reflection and different displays may cause slight color variation between the image and actual item. Measurement may vary by +/- 1-3cm.