M18 HACKZALL Reciprocating Saw (Tool Only). Our M18 HACKZALL One-Handed Recip Saw features a Dual Gear Anti-Vibration System providing you with unmatched comfort and control. Its compact, lightweight design gives you superior control and versatility. The cordless reciprocating saw’s powerful motor gives you 0-3,000 strokes per minute while its 3/4? stroke length allows you to perform fast cuts through a wide range of material such as wood, metal, and PVC. The dual gear anti-vibration system increases control and accuracy. The HACKZALL One-Handed Reciprocating Saw also features a QUIK-LOK blade clamp which allows you to perform fast and easy blade changes.