This HiKOKI CR18DSL/L4 Reciprocating Sabre Saw is powered by an 18V battery and is sold as a bare unit. It is designed for cutting a wide variety of materials including wood, metal, plastics, and green wood. Commonly known as recip saws, shark saws, cut saws, sabre saws, or sawzalls, these tools are versatile for indoor and outdoor use.