The 2135QTi set the standard for performance with the best power to weight ratio on the market in its class. The new 2135QPTiMAX raises the bar with 780 ft. lbs still at only 4.05 lbs. The new design includes enhanced controls for even greater comfort and convenience. We’re so confident with the durability of this tool that we are backing it up with a 2 year warranty at no additional cost. Patented Quiet Tool technology in this tool reduces sound without sacrificing performance.