With a compact and handy design, the DUC150 pruning saws offer maximum flexibility and are ideal for pruning and precise corrective cuts. Chopping green waste and small cutting jobs in the garden are also possible without any problems. Moveable guard covers the upper side of guide bar and opens gradually wider as saw chain cuts deeper in branch. The DUC150 is equipped with a 100 mm bar and tool-less chain and bar tensioning. The new tool-free chain tensioner enables the chain to be changed quickly and easily by simply loosening and closing the lever. Automatic chain lubrication minimizes the chance of stall due to lack of chain oil. The new tool-free chain tensioner enables the chain to be changed quickly and easily by simply loosening and re-tighten the lever. Its part of Makitas expanding 18V LXT System, the worlds largest cordless tool system that have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger