Cutting Edge Diameter: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm (x2 each size). Material: Cemented Carbide (Coated of titanium). Have enough anti-bending strength, wear resistance, high hardness, high wear resistance and high strength. For the holes of milling, grooves and edges on plates; For engraving IRCUIT boards, metal, plastic, stainless steel and copper and others. There are a total of 10 pieces in this set which you can use for quite a long time, and they are all packed and assorted in a plastic box for easy storage and use. Features:Have enough anti-bending strength, wear resistance, high hardness, high wear resistance and high strength. For countersinking holes, grooves and edges on plates; For engraving IRCUIT boards, metal, plastic , stainless steel and copper and others. There are a total of 10 pieces in this set which you can use for quite a long time, and they are all packed and assorted in a plastic box for easy storage and storage. 'use.Fine quality, these end mills are very good at processing many materials, including plastics, PCB and metal.Specifications:Material: Cemented carbide (titanium coated)Color: Gold (sharp) and Sliver (shank)Shank Diameter: 3.175/0.125"Cutting Edge Diameter: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm (x2 each size)Total Length: 37mm/1, 45" Weight: 53g (Approx.) Package included: 10x End Mills Note: Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the true standard.