Micro 100 Boring Bar, manufacturer part number QBT-160500.
Specifications: Minimum Bore Diameter: 0.1760 in; Maximum Bore Depth: 1/2 in (0.5000 in); Shank Diameter: 3/16 in (0.1875 in); Overall Length: 1-1/2 in (1.5000 in); Hand Direction: Right; Neck Diameter: 0.1350 in; Centerline Offset: 0.0663 in; Projection: 0.0250 in; Tooth Width: 0.0740 in; Split Length: 0.0950 in; Face Dimension: 0.0950 in; Length from Holder: 0.5900 in; Offset: 0.0680 in; Corner Radius: 0.0060 in.
Coating/Finish: Uncoated. Unit of measure: Inch.