2.30mm Dia, 9.20mm Flute Length, 50.00mm OAL Mitsubishi Micro Drill, manufacturer part number 10592441.
Specifications: Cutting Diameter: 2.30 mm; Flute Length: 9.20 mm; Usable Length: 4.60 mm; Overall Length: 50.00 mm; Shank Diameter: 4.00 mm; Point Angle: 180 degrees; Number of Flutes: 2; Coolant Option: External Coolant; LxD Ratio: 2xD; Carbide Grade: DP102A; Reach: 12.90 mm.
Material: Solid Carbide. Series: MICRO-MFE. Unit of measure: Metric.