Description
- Drill has a large scraps discharge space, little resistance and smoothly during the scraps discharge
- 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
- 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
- Suitable for PCB board engraving
Size : 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm Shank diameter : approx. 1/8" (3.175mm) Blade length:12mm Package include: 10pcs PCB engraving twist drill
