The Bosch Power Tools 1617200130 Hammer Switch helps control the electrical operation of compatible hammer tools. This replacement switch allows the operator to turn the tool on and off while controlling power supplied to the motor during use. A properly functioning switch can support responsive operation and reliable tool performance. Replacing a worn, faulty, or damaged switch can h... https://www.wholetoolbox.com/bosch-power-tools-1617200130-hammer-switch/1617200130.html