Angle Grinder Adapter

First time doing mushroom logs, I started with my little 20V battery drill. Battery lasted through 1 log and needed a charge, and it was a huge pain getting the sawdust out of the hole. So I broke down and bought an $11 angle grinder. No one outside of the mushroom community makes this adapter, you wont find it anywhere else. I initially balked at the price, even considering it's a specialized part and it's not exactly something you can sell at volume. Well I used it yesterday and let me tell you, it was 1000% worth it. I also bought the corresponding bit with the stop collar as recommended (I was eyeballing it with painters tape on the drill before). It is SO much faster! It says 4x faster but it might be better than that! With the light angle grinder I had more control, my arm didnt get tired after 1 log, no having to pull or back out in reverse, no clearing sawdust- a complete life saver. Plugs went in with 1 tap of the mallet, perfect size.