Item ...................... Mill tool holder for holding 7/8 -9 or similar size bolt thread taps.

Overall Length ..... 8-1/4"

Shank ................... 1.250" diameter round

The Largest outside diameter measures about 1.937"

The hole measures .751" round and 1.810" deep

Manufacturer ..... Unknown probably Scully Jones

Condition ........... Nice used, equipped with one cap screw that should be replaced with a set screw for safety before use. It does have some light corrosion starting, nothing serious.