As a tradesman I need a cordless drill and sawsall. I bought my dril and saw with 18v battery pack back in 2005 and used it for one year on jobs and then for the next 4 years around the house. The battery really holds a charge and lasts a long time drilling and the drill is powerfull. The sawzall is also an excellent product for the price. I had no problems with either until yesterday when the chuck froze up on the drill. I am buying this product because I need the chuck and might as well have a few spare parts and an extra battery. 5 years use for the full kit at the price I paid,, no brainer,, good purchase and am happy with it. My drill otor is still running strong and the battery acts the same as when it was new 5 years ago.