For the guys that use the Strikemaster Lazer hand auger with a drill, what adapter do you use?  I have had 2 of them and both have broke after a handfull of holes.  I had an HT and it twisted of after about 10 holes.  Then I got a beaver dam that is super heavy but the part the chuck grabs onto is only held held on by a pin and that sheared off after 80 holes.  I use a 6" auger so I am not turning anything crazy.  I think I will weld the beaver dam back together and forget about the shear pin to get by.  But is there a brand (out of the box) that can handle the torque the drill is putting on it?