Failed to load media. The screw as a whole is of very high quality. It's durable but not too heavy. The problem is that the part that the drill chuck is attached to is not real (i.e. welded crookedly). At full speed, the drill vibrates so much that it is almost impossible to hold the drill. I got a second drill hoping the first one was just an accident. I use auger driven augers to transplant a few hundred plants a year from the greenhouse to the vegetable garden and have not had this experience with others. I've posted a video of the snail at half speed to clarify. To be honest, the rest of the snail is so well done that if the company fixed this deadly wobble problem, I'd give it another try.