Only for the Ball Peen Hammer, this isn't the case for a claw hammer, a framing hammer, a geologists hammer or a lump hammer. Sorry...
Only in 'forn parts.
In Good old Blighty it's ball-pein.
So what about the claw hammer I've got that has a, erm, claw, on it?
This has made me look very silly. I've had to apologise to my friends for giving them false pieces of completely useless information. Thanks a lot VT
Surely the opposite end of a lump hammer is....a lump hammer?