K&M Neck Turning Case Holder

I got tired of having to either chew up my hand or have a Crescent wrench handy to loosen the case when I was neck turning my brass... so I made a holder to insert the end of the shell holder from K&M in. Neck turning tool is from www.kmshooting.com

Edges are either filleted of chamfered to allow for tool insertion. I actually used a heat gun to heat up my metal tool holder (Sitting on my glass 3d Print bed), 20 seconds and it easily pressed into the holder using my bench vise