10pcs 0.35mm Tip Helical Groove Tungsten Carbide Micro PCB Drill Bits Product Name : PCB Drill Bit;Material : Tungsten Carbide Cutting Diameter : 0.35mm / 0.014";Cutting Depth : 10 mm / 0.39" Shank Diameter : 3 mm / 0.12";Total Size : 38 x 7.5mm / 1.5" x 0.3"(L*Max.D) Color : Silver Gray, Red, Green, Yellow;Weight : 42g Package Content : 10 x PCB Drill Bits1 x Plastic Case