CEMENTED CARBIDE: these end mills are made from ultra-fine grain cemented carbide material with good milling and cutting performance, ensuring high working efficiency GREAT PERFORMANCE: have bending resistance , wear resistance, high hardness, high wear resistance and high strength these cutters have sharp edges, can be used to mill holes, grooves and edges on plates POLISHED AND COATED SURFACE: well-polished and coated surfaces are very clean, neat, and there are no glitches or burrs on the rod, safe for your hands DIFFERENT MATERIAL: many objects or materials can be etched such as circuit boards, plastics, stainless steel and copper Product size: 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm, 2.4mm, 2.5mm, 3.0mm, 3.175mm, diameter of stem 3.175 mm Total length 38 mm Product colour: gold Quantity delivered: 10 pieces