The BLACK+DECKER BDCR20B 20v MAX Lithium Bare 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". This is a bare-tool item - battery sold separately (not included). Standard equipment included: (1) BDCR20 20v Max Lithium Reciprocating Saw and (1) Reciprocating Blade.