Hazet

Blacksmith Hermann Zerver, son of a blacksmith, began constructing plane irons, saw setters, hinges, and ball locks in the forge he maintained at home, and, in 1874, moved the expanding manufacturing business to a bigger plant, in which he introduced, in 1888, the first heavy-duty reversible ratchet production machinery.

In the 21st century, the company's manufacturing range covers some six thousand different tools, including specialty tools for most major car manufacturers, as well as torque tools and tool trolleys under its Assistent brand, all of which are mostly made in Germany.