Specification: Shank Type: Round Shank; Tool Flute Type: Spiral; Rock Well Hardness Grade: 63-66 HRC; Twist Drill Bits Diameter: 1mm / 0.04-inch; Shank Diameter: 2.35mm / 0.09-inch; Total Length: 56mm / 2.2-inch; Drill Bit Length: 35mm / 1.38-inch…