The Milwaukee M18 Cordless lithium-ion HACKZALL 1-Handed Reciprocating Saw features a patent-pending, dual-gear, anti-vibration system for unmatched comfort and control. The saw's lightweight design gives you superior control and versatility for true 1-handed operation, even overhead. The powerful motor delivers 0-3000 strokes per minute. A 3/4 in. stroke length allows for fast cutting through a wide range of materials. And the QUIK-LOK blade clamp helps with fast and easy blade changes.