— a switch in the form of a slider with two working positions (plus a neutral one between them, at which the tool does not turn on at all). Usually, it is able to move in the direction "back and forth" — this option is considered the most practical. The sliders are quite simple and at the same time convenient and visual, especially when used in screwdrivers and wrenches: by moving forward (away from you) the direction of rotation is set to “twisting”, by moving backward (toward yourself) — respectively, “to unscrewing”. However, such devices are widely used in other types of instruments (see "Device") and are generally the most popular option nowadays.
