The Bosch Core18V Lithium-Ion Reciprocating Saw Kit (CRS180-B14) comes with a powerful, compact saw and a Core18V battery. The saw is only 17.7" long and 6.35 lbs (tool only, not including battery), and it delivers an efficient 1-1/8" stroke, to remove more material per stroke. In independent tests, the tool and battery made 207 cuts in 2 x 4s on a single charge. The saw's Lockjaw system allows for fast one-handed blade changes. It has two speed ranges to match the speed of the cut to the material.