I think when the model "A's" of the cornertang drills were being developed... just having a knob on a hand tool you could tie a string to would have been a big advantage. I can't find anything in Overstreet or on the internet to compare it to. The barb on the edge goes from skinny at the base to fat on the end. The only points around here that the ears expand off the base are, Andice, Bell, CalfCreek.. points of that nature. Sure could use some
Thank Y'all. Kris