Specification: Drill Bit Diameter: 13.5mm / 0.53-inch; Flute Length: 170mm / 6.69-inch; Shank Diameter: 13.5mm / 0.53-inch; Total Length: 305mm / 12.01-inch; 1 x Lengthened Drill Bits High Speed Steel: Made of high-speed steel, with high hardness, heat…