Creasing Hammer
From DT Online
Description
Creasing Hammers have narrow rounded edges or cross peins each end.
Features and Uses
The heavier versions (e.g. 1kg) can be used together with a Creasing Iron to make grooves and set ribs or creases in sheet-metal. Lighter models (e.g. 200g) can be used by Tinsmiths to tuck in Tinplate edges when making a Wired Edge.