10Pcs Twist Bits Set PCB Print Circuit Board Tungsten Carbide Engraving☜

Feature: \n 1. 100% Brand New and High Quality.\n2. 10pcs carbide micro 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm.\n3. has a large scraps discharge space, little resistance and smoothly during the scraps discharge.\n4. Use high quality materials and fine process makes more acute edge, reduce force and broken , improve the quality of hole wall.\n5. The edges strictly avoid partial hole, confirm the quality. \n\nSpecification: \n\nFeatures:\n\n- 100% Brand New and High Quality\n\n- 10pcs carbide micro 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm\n\n- has a large scraps discharge space, little resistance and smoothly during the scraps discharge\n\n-\n Use high quality materials and fine process makes more \nacute edge, reduce force and broken , improve the \nquality of hole wall.\n\n- The edges strictly avoid partial hole, confirm the quality.\n\n- Long life, it can 2000-5000 pcs under normal working conditions, also can :