100pcs 0.3-1.2mm PCB Small Drill Bits PCB Drills Drill Drilling

100pcs 0.3-1.2mm PCB Small Drill Bits PCB Drills Drill Drilling Description

100pcs carbide drill 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2mm
Stem diameter: approx. 1/8 inch (3.175 mm)
Long life, it can drill 2000-5000 pcs in normal working conditions, can also go back grinding 4-5 times
Materials: alloy

new and high quality
Drilling has a large area of leftover discharge, little resistance and softness when dumping waste.
Using high quality materials and proper grinding process makes bit sharper, reduce cutting force and breakage drilling, improve the quality of the wall of the hole.
The cutting edges avoid strictly partial hole, guarantee the quality.

Package Contents:
100 x drill