Summary: I've owned and used the Dewalt 505 hammer drill for 10+ years now. It has made me literally 1000's of dollars in work and it's still going strong. Twice I thought it was all done with. Once a wire came loose from the trigger from all the drilling and once the hammer action stopped. Took it all apart and everything in the gearbox looked OK. Put it back together and it worked fine again. I think the ball bearing inside slid out of place is all. Tough little drill for sure.
Summary: The 3rd time I used this drill for a real project it went snap and the drill bit does not turn anymore. It is out of warranty so now I have to pay to get it fixed. I think I will buy a Milwaukee before I pay half the price to have it repaired. To be fare I was drilling 3/4" holes in 50 year old concrete 2" deep and it broke on the 5th one.
Summary: Being one of a dozen Dewalt tools I've owned, this drill is the first to have failed. The motor sparked its last breath today, before venting a wisp of smoke and then going quiet. The motor overheated easily under a load (quite the smell) and was obviously underrated for many of the jobs I used it for. I wouldn't recommend it for drilling holes greater than 1/4" diameter.
Good quality and is a tool that will serve well over the years
ilovemydog "Bill", Amazon
22 July 2014
Summary: For the past month I have been repairing a 20x24 deck out off the back yard. This three year old drill my buddy brought has been a work horse. I was so impressed I bought one the other day. First job was to drill down into the concrete 2 half inche holes 2+ inches deep. This brand new drill with a new bit went into the concrete like it was wet wood. This is my 4th or 5th drill and my first corded one. I expect it to be my last also.
Summary: I bought my original DW505 as a rebuild from a tool show at the local Guard Armory in 1997. I have definitely over bit the chuck by more than a half inch in concrete on numerous occasions. The 505 takes it and keeps going. Finally, I wore the chuck pawls down so far that they would not clamp a bit. Went to change the chuck but, I could not get it off. Amazon was running a killer deal on the 505K with the case and roughly the same price I paid for the recon 10 years ago.
Summary: I purchased this particular model of Hammer Drill based upon the fact that I owned several other tools of the Dewalt Line. All of the Dewalt tools that I previously owned are of high quality, durable, and more than adequately get the job done. This hammer drill, though, I found to be an exception to the rule! While using it to drill holes in a concrete footing to install anchor bolts, I noticed that it was generating a tremendous amount of heat.
Summary: I have had my 505 for about 3 years now and have not had any problems with mine. Most people don't use hammer drills properly and that's why this one has had a bad rep on Amazon.com. Hammer drills are more for smaller holes in concrete and brick and the occasional large hole. The largest hole I think I have ever drilled with mine is 5/16" and the drill will drill these all day long.
Dewalt should go back to the drawing board with this one!
22 July 2014
Summary: As a professional home remodeler, I have owned just about every brand of tool out there. The majority of my power tools are Makita and my nail guns are Senco. I own and love the Dewalt 12" compound miter saw and when looking for a 1/2" corded hammer-drill I bought the Dewalt. BIG MISTAKE ! The first one I bought smoked itself after about 15 minutes of moderate use. I brought it back to the dealer and Dewalt replaced it under warranty.
Summary: I have use this drill for brick, masonry, concrete and even hard field stone. It does great as long as it is used properly. What this means: Use it in moderation (as with any power tool that heats up) Do not use a dull bit. This will generate excessive heat. It should'nt take 15 minutes to drill a hole. Don't mistakingly use the regular drill feature as a hammer drill. (I have seen this happen with inexperienced users) Use the hammer feature to your advantage.