The DeWalt XR Lithium-ion cordless range offers extreme run time, increased efficiency and improved performance. By constantly monitoring tool and battery operation, the intelligent switch module maximizes performance and prevents damage caused by overload or temperature build-up. This technology, combined with a tough outer casing and superb ergonomics means that XR Lithium-ion is truly "Tough on the outside & Intelligent on the inside". Features & BenefitsPowerful & efficient PM47 fan cooled motor with replaceable brushesDelivers fast cutting action up to 3000 strokes per minuteIntelligent variable speed trigger & lock-off switch for quick controlled cuts and enhanced work safetyTool-free adjustable shoe with anti-scratch cover bevels 45 degrees in both directionsQuick and easy patented keyless blade change system, accepts T-shank bladesPatented anti-vibration counter-balance mechanism and rubber grip providing a smooth operation3-position pendulum action control