Feature:1. Using nanotechnology and advanced grinding technology, the drill bit is glossy and wear‑resistant, and the chip removal effect is good.2. Long straight shank design, continuous cutting when using, fast processing speed and labor saving.3. Using humanized positioning box cover design, can reduce machine debugging time.4. Tungsten steel has high hardness and wear resistance, which can avoid breaking during use.5. The high-quality packaging box better protects the tip of the knife from accidental damage during transportation.Specification:Item Type: PCB Twist Drill BitMaterial: Tungsten steelSpecification: 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2.0mm Package List:10 x PCB Twist Drill Bit