Seen something similar with guys working at height , they put a safety line through it so if dropped it doesn't kill anyone below.. Usually loops around the back under the claw.
Its a 38063 21oz
Made by Vaughan
Its missing the replaceable steel cap striking face, they do smooth and milled faces.
The exact same face they used on the Ti Tech titanium hammer.
Not a bad nail wacker.
Yep.
Technically the hammer could be a 38062 also I guess the smooth and milled had a different number
The part no on the Craftsman smooth cap is 938068 and milled 938069
It does look like it has been used sans cap and the head is mushroomed slightly so it will probably need some grinding.
The above search of "screwdriver locknut adjusting tool" brought up images of similar functioning tools. Could be used anyplace you have a adjusting screw held in place by the locknut.