The BLACK+DECKER BDCR20C 20V MAX* Lithium Reciprocating Saw features tool-free blade changing. It also has a variable speed trigger and a pivoting shoe for ease of use. The maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18 volts. This recap saw offers 0-3,000 strokes/minute and a stroke length of 7/8". Standard equipment included: (1) BDCR20 20V Max* Lithium Reciprocating Saw, (1) 20V Max* Lithium Battery and (1) Reciprocating Blade.