Features:Cutting Edge Diameter (CED): 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mmCutting Edge Length: 5.5mm, 7mm, 7mm, 9.5mm, 10mm, 9.5mm, 10mm, 10mm, 10mm, 10mmShank Diameter: 3mm / 1/8" (approx.)Overall Length: 38mm / 1-1/2" (approx.)Cutting Edge Material: Tungsten CarbideShank Material: HSS (High Speed Steel)Package Included:2 Set (20 Pcs) x PCB Drill Bits with Protection BoxDescription:1. Long Tool Life: With high hardness, high wear resistance, high strength, resistance to bending, anti-impairment. Long-lasting bits are made from Tungsten Carbide for precise, easy experience.2. Spiral Flute Bits: Tip spiral flute drill bits with sharper cutting edge, reduce cutting force and prevent drill broken, improve the drilling accuracy.3.
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