tool
Sledgehammer
The sledgehammer is a heavy hammer (between 2 and 12 kg) with wedge-shaped
peen, which in some cases lies in the same plane as the handle. The handle
is long (approx. 60 to 100 cm) so that it can be gripped with both hands to
hit with great force. The sledgehammer is used by the blacksmith for heavy
forging work; many other professions use it too, such as the quarry worker.
When the blacksmith works with one or more helpers, he uses a forging
hammer to indicate where to strike. The helpers then each handle a
sledgehammer to do the actual forging work. [MOT]