Micro 100 Boring Bar, manufacturer part number HBM-022512.
Specifications: Minimum Bore Diameter: 2.26 mm; Maximum Bore Depth: 12.00 mm; Shank Diameter: 3.00 mm; Overall Length: 38.00 mm; Hand Direction: Right; Neck Diameter: 1.90 mm; Split Length: 4.50 mm; Centerline Offset: 1.13 mm; Face Dimension: 0.06 mm; Projection: 0.20 mm; Head Width: 2.05 mm (0.0807 in).
Coating/Finish: Uncoated. Unit of measure: Metric.