Sorry if this has been posted before by someone. I looked and couldn’t find anything about it. Anyway I read a post lately, (I can’t remember what MZ the post was about), about having a hard time finding a small enough wrench for intricate or small nipples or tight clearances. During the covid thing I was shooting alot and broke my pistol nipple wrench. Figured no biggie, just grab another. They were nonexistent on the internet. TOTW makes a good one but they were out with no back orders. I live in the middle of nowhere with no place to find anything. 150 miles from the nearest walmart for example. Dug through my stuff and found 6 wrenches but non would fit. Way too big. I am sure I didn’t invent this but made one out of a deep well 5mm 1/4” drive socket. It works fantastic! Carefully cut the grooves out parallel to the flats inside that grip the nut. Used a dremel with a good reenforced cut off wheel and then slowly took it down and cleaned it up with a diamond needle file. Anyway, I hope this can help someone!