This Irwin kit was tested against a Dewalt kit that costs twice as much. I prefer Irwin. While it looks lightweight, it's well designed and works great. There were also no problems with melting plastic when drilling steel doors. The plastic guide and bar cutter also work great. , and undoubtedly works better than the Dewalt kit. So far I have made 4 steel doors and this is my tool. I gave up the Dewalt after 2 doors, just the crowns that came with it. Irwin wins this round.