Made by NTM.
This is a used STUBBY Indexable Internal Boring Bar in GREAT condition.
Model #: A08-SCLCR-3
Specifications:
Minimum Bore Diameter: 0.572" approx.
Shank Diameter: 1/2"
Overall Length: 5"
Comes as shown in pictures.
-Ref 4-71 e-a