On my grinder that I took apart, the connections to the motor housing seem to be (squarish) metal pieces that slide into a slot held in by a clip. The picture above seems a bit different. ALSO, the reason it needs replaced is because, when the battery was plugged in last time it was used, the metal connectors came into contact with each other and I'm assuming kept the connection staying open, allowing machine to continue to run after trigger was released. Therefore, I'm assuming it led to shorting out the switch. (I just don't want to buy the wrong part.) Thanks :)