10pcs 0.75mm Tip Spiral Flute Tungsten Carbide Micro PCB Drill Bits Product Name : PCB Drill Bit;Material : Tungsten Carbide Cutting Diameter : 0.75mm / 0.03";Cutting Depth : 10mm / 0.39" Shank Diameter : 3 mm / 0.12";Total Length : 37 mm / 1.5" Color : Silver Tone;Weight : 43g Package Content : 10 x PCB Drill Bits1 x Plastic Case