Drill Bit Set 10pcs 0.3mm to 1.2mm Carbide PCB Rotary Tool Jewelry CNC Engraving Drill Bits Set

Description This is a set of 10pcs Carbide PCB Drill Bits. Use materials and fine grinding process makes bit more cutting edge reduce cutting force and broken drill improve the quality of hole wall. Great for PC Boards Plastics Fiberglass Wood Metals etc. Features - Color: As shown. - Material: Metal. - Size: 9x6x1cm. - 10pcs Cutting diameter (CED): 0.3-1.2mm (Size Include :0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2mm). - Great for PC Boards Plastics Fiberglass Wood Metals etc. - 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. - Use materials and fine grinding process makes bit more cutting edge reduce cutting force and broken drill improve the quality of hole wall.