20 Pieces PCB Drill Bit Set Hard Metal Tungsten Steel Micro Drill Shank 0.10mm-1.0mm and 1.1mm-2.0mm (1 Piece Each)

Diameter: 0.1-1mm: 0.1mm 0.2mm 0.3mm 0.4mm 0.5mm 0.6mm 0.7mm 0.8mm 0.9 mm 1.0mm (1 piece for each value). 1.1-2.0mm: 1.1mm 1.2mm 1.3mm 1.4mm 1.5mm 1.6mm 1.7mm 1.8mm 1 .9 mm 2.0 mm (1 piece for each value). Packing: 20 pieces (1 piece per value) 2 x plastic boxes. Suitable for: PCB drilling machines engraving machines CNC and high-precision special drilling machines. Carbide rods and tungsten steel rods with high hardness high wear resistance high strength bending resistance anti-impairment and long service life. Large drill chip space splinter resistance splinter resistance low drilling heat reduces streaks. The drill has a large drain little resistance and smoothly during the launch discharge. Adopting high-quality materials and fine grinding processes the cutting edge becomes sharper reduces cutting force and broken holes and improves hole wall quality. Strictly symmetric cutting: advantageous and efficient cutting avoid offset drilling.