Made in Switzerland by Kaiser.
This is a used Steel Shank Modular Boring Bar + Insert Heads in GREAT working condition. The shank has some pitting on the end of the shank, and one of the heads is missing the insert screw. But you can fine replacements easily for these online.
Bar Model #: 615.236
Insert Heads Model #: 615.282 | 615.283 | 615.284
Specifications:
Shank Diameter: 5/8"
Overall Length: 4-1/2"
Comes as shown in pictures.
-Ref 44-96