Check the listing for details. DewaIt / Crafstman / BDK Impact Tool Switch * 616848-00 * Forward / Reverse. Condition: New. Listed at 18.95 USD. Description:This is a Trigger type switch that has 4 terminals. This authentic DeWalt replacement part is sold individually. Switches are commonly replaced parts in power tools, handling all on/off and variable speed operations. They also have a role in electric breaking; they can momentarily reverse electrical polarity. Because switches use mechanical internals, they will degrade and wear out over time, eventually needing replacement. Some common signs of a broken or failing switch are: The tool has stopped functioning it refuses to start. The tool operates intermittently, requiring multiple tries to turn on, until eventually it won’t start at all. The variable speed function and electric braking aren’t working properly. CompatibilityThis part is compatible with the following machines: DeWALTDW292 Type 1 1/2 Impact WrenchDW293 Type 1 1/2 Impact WrenchDW294 Type 1 3/4 Impact Wrench Black and Decker28997 Type 1 Impact Driver