A long time ago, I was fitting a beavertail and was lamenting the fact that I only had two hands and worked alone. This was a particular annoyance while trying to grind and sand the top of the beavertail to make it in register with the frame tangs. I tried all sorts of jury rigging with poor to no success to keep the beavertail swung out firmly so I could sand and grind on the top. I am definitely a "two hands on the rotary grinder kind of guy".
So one day while I was shaping a beavertail and cussing my sorry state of affairs (not having three hands) it came to me - build a tool to sit inside the frame in the trigger track that will hold the beavertail out while you grind. I did and the rest is gunsmithing history !!(I always wanted to say that) !!
The HD-802 tool works like you see in the attached pictures. Instructions for use are located at - Click Here! and will work with every frame and beavertail combination that I've ever been exposed it to. It's made of anodized aluminum and a stainless screw and pin. Takes little room in the tool box, but does a big job.