PWRCORE 12™ Compact Reciprocating Saw Kit The SKIL PWRCORE 12™ Reciprocating Saw Kit includes a PWRCORE 12™ Lithium Battery with PWRASSIST™ Mobile Charging and PWRJUMP™ Charger. From tackling repairs to major remodeling and demolition projects, this compact power saw makes accurate cuts in hard-to-reach places and overhead. Its compact, high-performance brushless motor makes this electric hand saw strong enough to cut through lumber, PVC piping, tree branches, and metal.