One particularly fashionable speakeasy in Chicago’s woodworking district, The Workbench, was noted for inventing cocktails named for woodworking tools such as the still popular Screwdriver (vodka and orange juice) and Gimlet (vodka or gin with lime juice), and the somewhat less popular C Clamp (whiskey and clam juice), Fretsaw (gin and chicken stock), Spokeshave (rum and varnish), Bark Spud (turpentine and vodka, garnished with a potato peel), and Chisel (vodka and shellac).
This establishment is also the first place known to use a jigger – a now common bartending tool used to measure liquor which is equal to 1.5 fluid ounces (about 44 ml) – whose name came from the Sharpening Jig, or "jigger," since it was said to be roughly equivalent to the amount of blood lost by someone who gets his finger caught in a such a device.