panasonic 15.6 volt is the ONLY drill i buy these days. they are compact powerfull and the batteries last. I use these every day all day for installing hardware. this is the only drill i have found that will last beyond the warranty period without having to have some kind of repair done. I have used em all! my PC's didnt last 4 monthes before they needed repair. triggers motors batteries ect... dewally? same. bosch? same thing. craftsman? [rebadged bosch] same. all of these [and there were several of each brand] were under warranty so they were fixed for free but in my line of work I dont have time for repair shops for things that shouldnt need repair that often. have been through 8 panasonics . 2 per year. never a problem while in warrantee! after that I have had some issues like the break stopps working or the variable speed quits but these drills are used all day every day and rode hard! they get droped used as hammers and fall down stairs regularly. the PC's and dewalts are stronger but the batteries dont hold up to being charged nearly everyday. of the 8 I have given 3 away to family and friends 2 are in the shop and 1 is LOML's and the newest 2 are in the truck. none have failed to perform ever! YMMV
fred