Description:

Drill Bit Size: Cutting edge diameter: 0.2mm / 0.008", 0.3mm / 0.012"; shank diameter: 3.175mm / 1/8"; overall length: 38mm / 1-1/2". With sharp cutting edge, milling groove and clean surface, these tool sets work quickly and cleanly, no glitches or scrap left.. Wide Applications: Suitable for drilling and engraving PCB, acrylic, plastics, fiberglass, wood, aluminium, soft metals. Fit for PCB drilling machines, engraving machine, CNC and high precision special drilling equipment.. Carbide Tool: High hardness, good toughness, wear resistance, high strength, resistance to bending and heat resistance. Carbide can run at higher speed than high-speed steel. Carbide material with good milling and cutting performance.. Sharp Cutting Edge: Provide smooth cutting, reduce cutting force and prevent drill broken, improve the drilling accuracy. It has good cutting strength and drilling effect. Spiral chip space design for fast and clean chip removal..