Screwdrivers or turnscrews, as they were known when they first appeared in the middle of the 18th century, were initially manufactured as specialized tools for gunsmiths and clockmakers. As the applications for screws became more widespread, so did the tools designed to turn them. Screwdrivers designed for screws whose threads were tightened into metal were sold in a vast range of style and sizes—from short and stubby locksmith's screwdrivers...Continue Reading