This is a Makita 143975-1 Complete Switch tool part for Impact and Drill/Driver tools. Small, lightweight and made of durable plastic; this 143975-1 switch is compatible with Makita tool models: XDT13, XDT13M, XDT13R, XDT13T, XDT13Z, XDT14, XDT14M, XDT14R, XDT14T, XDT14Z, XDT15R1B, XDT15RB, XDT15ZB, XWT12RB, and XWT12ZB (sold separately). Please reference the tool manual before purchasing to ensure the proper fit and care of this tool part.