Micro 100 Boring Bar, manufacturer part number QHBBC-1501250-004.
Specifications: Minimum Bore Diameter: 0.1500 in; Maximum Bore Depth: 1-1/4 in (1.2500 in); Shank Diameter: 3/16 in (0.1875 in); Overall Length: 2-1/2 in (2.5000 in); Hand Direction: Right; Neck Diameter: 0.1300 in; Centerline Offset: 0.0750 in; Head Width: 0.1400 in; Face Dimension: 0.0940 in; Length from Holder: 1.5900 in; Corner Radius: 0.0040 in.
Coating/Finish: Uncoated. Unit of measure: Inch.