Lol...so you don't like the chucks and had some servicing. I don't know what to say but I like my all-metal chuck on the m18 hammer drill. It's hard to beat the battery life...go all day on one battery. Got brushless motors and logic in these tools...bluetooth connectivity and the onekey app. Really nice sawzall, the jigsaw has a plastic, non-marring foot and 5 position throw adjustment. I love my 1800 in lb. impact driver even though the detent needs to be repaired. These things happen to all tools.