The DCS331M1 is the 1 battery version of the DCS331M2. Latest generation premium Jigsaw featuring new XR Lithium Ion Technology. Part of the intelligent XR Lithium Ion Series designed for efficiency and making applications faster. Powerful Highly efficient DEWALT PM47 fan-cooled motor with replaceable brushes. Delivers fast cutting action up to 3000 strokes per minute maximising user productivity. Intelligent variable speed trigger lock-off switch for quick controlled cuts and enhanced work safety. Tool-free adjustable shoe with anti-scratch cover bevels 45 degrees in both directions. Quick and easy patented keyless blade change system, accepts T-shank blades. Patented anti-vibration counter-balance mechanism and rubber grip providing a smooth operation. 3-position pendulum.