General description 10PCS Titanium Coat Carbide End Mill Engraving Milling Cutter CNC Router Bits are designed for precision engraving and milling tasks. These bits are suitable for use with PCB machines and can effectively work on various materials including metal, plastics, wood, SMT, fiberglass, and carbon board. Technical specifications Cutting edge diameter: 0.3mm / 0.012 inch Shank diameter: 3.175mm / 1/8 inch Cutting edge length: 2.6mm / 0.1 inch Material: Ultra-fine grain carbide Sizes included: 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 Usage Ideal for engraving PCB, CNC, circuit boards, metal, plastics, wood, SMT, fiberglass, and carbon board Select an appropriate feed rate and cutting speed based on the material to enhance tool life Other information Package Contents: 10 Router Bits Note: Light reflection and different displays may cause the color of the item in the picture to differ