High quality tungsten carbide pcb drill bits

         Carbide Micro Drill Bits 0.3mm to 1.2 mm

• 100% Brand new and high quality
• 10pcs carbide micro drill 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2mm,
• Drill has a large scraps discharge space, little resistance and smoothly during the scraps discharge.
• Use high quality materials and fine grinding process makes bit more sharp cutting edge, reduce cutting force and broken drill, improve the quality of hole wall.
• The cutting edges strictly avoid partial hole, ensure the quality.
• Long life, it can drill 2000-5000 pcs under normal working conditions, also can return grinding 4-5 times
• Shank diameter: approx. 1/8" (3.175mm)