Mitsubishi Dual-Insert Drill MVX1187X4C125, manufacturer part number 679800.
Specifications: Flute Length: 5.0300 in; Length to Flange: 6.1300 in; Flange Diameter: 1.7500 in; Coolant Option: Internal Coolant; Cutting Diameter: 1.1870 in; Shank Diameter: 1.2500 in; Overall Length: 8.5100 in; LxD Ratio: 4xD; Usable Length: 4.7480 in.
Series: MVX. Unit of measure: Inch.