I've been using a short piece of 3/4" schedule 1120 PVC pipe to make my fillets.
This has an outside diameter of 1.05" (.525" radius) so it makes a great fillet for fiberglass.
Jacques specified a 1/2" radius and this works perfect except when you have to pull that radius in the corner like
when installing frames.
I looked on the internet for a ball tool to do this and found them. The thing is they were made from stainless and expensive.
Every one I found was over $40.00.

Here is my solution,. I machined a spherical ball end that matches the PVC. You just press this into a short section of PVC and your set.

This truly makes the task easier to do. If a larger size is needed (1.25") I can run them as well.
I'm sending samples to Jeff today.
I hope you all will want to have one!
