ITEM NAME:Box 10x 0.3-1.2mm PCB Small Drill Bits PCB Drills Drill Drilling H4P8 Box 10x 0.3-1.2mm PCB Small Drill Bits PCB Drills Drill Drilling H4P8 10pcs car.Using high quality materials and proper grinding process makes sharp bit sharper, reduce cutting force and breakage drilling, improve the quality of the wall of the hole.
