It's great that this company offers an affordable hammer drill for those who need to use it from time to time. The dies are sharp and precise, and the pin bearings help reduce torque requirements. I suggest lubricating the bearings with heavy oil. But even with bearings, a powerful ratchet wrench is required. (For those new to this type of die, the die cuts through sheet metal without the die rotating.) About the seller: They responded to a minor issue almost immediately (same day) and fixed it on resolved same day. model seller!