In my opinion the best cordless SDS drill around. I had one of these stolen last year so bought this one to replace it. As I could not afford to replace the last one straight away I bought cheaper SDS, but to be honest it struggled with heavy concrete where as the Dewalt cuts through the same concrete like a knife through butter. you are drilling into hard stone or concrete then this is the tool for you. I found that the batter life is better than on cheaper models too.