Cut between studs and other tight spots with ease using the 20v max* xr brushless compact reciprocating saw. Featuring a brushless motor that provides up to 2. 5x longer runtime** and a variable speed trigger that delivers up to 2,900 spm. This saw delivers fast and efficient performance and offers quick blade changes for versatility in a variety of applications. This tool is compatible with all 20v max* batteries and chargers.