What is this?
Picked this brass tool up at the scrap metal yard but unsure
what it was used for.
Bill......my thought was a tire wacker for truckers or bearing driver.
Paul.....small drift punch for driving bearing races.
Richard......clock repair tool.
Mark......brass drift punch for mechanics.
Al......hammer for shaping malable metals.
Frank.......pin bolt driver or line up tool or knock out punch.
Russ......if hollow maybe a hose coupling, if not, don't know.
Steve in 29 ......Never seen one in brass but it is definitely a Machining
Industry tool known as a Gyrocosmic Relevator used to tune French Horns
and Edsels, plus has the handy punch feature built-in when all else fails.
Coco......sounds like something out of Buck Rogers to me.
Ralph......An adjustable weight for steam engine revolution