The difference between "good" drills like this one and "cheap" drills is amazing! It took me 20 minutes to drill through a piece of steel and in the process 3 of my old drill bits were destroyed. I got angry and bought them. One hit, 45 seconds (at low rpm mind you) and I'm done. I learned something that probably every machinist already knows: you get what you pay for! Stop wasting time and money, buy good drill bits!