The first record of people using a measuring device was by the Romans using marked strips of leather, but this was more like a regular ruler than a tape measure. On December 6, 1864 patent #45,372 was issued to William H. Bangs of West Meriden, Conne
A sledgehammer is a tool with a large, flat, often metal head, attached to a long handle. The long handle combined with a heavy head allows the sledgehammer to gather momentum during a swing and apply a large force compared to hammers designed to dri
A ball-peen or ball pein hammer, also known as a machinist's hammer,is a type of peening hammer used in metalworking. It has two heads, one flat and the other, called the peen, rounded. It is distinguished from a cross-peen hammer, diagonal-peen