I have 30-40 year old Hole Hawgs, we keep having rebuilt that have BURIED these drills. These won't last a year with daily industrial use, and we even run buck boost transformers to insure the 120 volts mains is within +/- 10% or less of 120 volts, so it's not long extension cords or other reasons other than poor quality. We have relied on the regular Hole Hawg for decades and the old ones still deliver the goods. The Timber Wolf drills actually put this drill to shame, and that's really bad. We have cracked many Timberwolf gear boxes, and kept the drills running until we can get a replacement, which was always Milwaukee. This is more of a Timberwolf wannabe, and it's just pathetic for a Milwaukee product. We run upto 3 shifts 24 hours a day, sometimes 12 on 12 off, 24 hours, 7 days a week, and that is more than these can handle. That schedule will take these drills out of service within 4 months. The 1980s Hole Hawgs were mean enough to break wrists. We had 3 or 4 broken wrists within 3 months in 1989. I am smart enough to let the drill spin out of my hands, and save my arms. You can bog these down. I still have a box filled with Milwaukee armbreakers and we are keeping them patched together after 35 years of service. These go to the junk heap. I love the super low profile 90 degree head, but the rest of the drill is just not tough enough for pro use. Milwaukee used to be THE name you wanted on any and every drill except for a hammer drill, or core drill, and Milwaukee's core drills weren't that bad.