An assortment of knife switches from The Hillman Group. A knife switch is a type of switch used to control the flow of electricity in a circuit. It is composed of a hinge which allows a metal lever, or knife, to be lifted from or inserted into a slot or jaw. Variants included in this assortment range from 7/8" to 1-1/2" in width and come in 1-1/2" & 2-5/16" lengths. Full assortments of #50427 contain three (3) items comprised of Hillman item numbers #401035 - #401037. Full assortment has two (2) boxes each of items #401035 & #401036.