Specification: Drill Bit Diameter: 4.2mm / 0.17-inch; Flute Length: 175mm / 6.89-inch; Shank Diameter: 4.2mm / 0.17-inch; Total Length: 300mm / 11.81-inch; 1 x Lengthened Drill Bits High Speed Steel: Made of high-speed steel, with high hardness, heat…