The 18V Sawzall features 0 to 3200 SPM (strokes per minute), gear-protecting clutch which absorbs impact, QUIK-LOK blade clamp to provides quick blades changes, variable speed trigger to optimize speed, and on-board fuel gauge that displays remaining run time. Only 17-3/4" in length. Kit includes (2) 18V XC high capacity batteries, 1 hour charger, and case. No. 2621-22: Voltage: 18V, Battery Type: Lithium-Ion, Ampere Hour: 3.0 Ah, Stroke Length: 1 In., Strokes per Minute: 0-3200 SPM, Weight: 7.8 Lb., Dimensions: 17-3/4 In. L, Batteries Included: Yes, Charger Included: Yes, Case Included: Yes, Warranty: 5 Year, Pkg Qty: 1, Package Type: Box