Does anyone know the thread size on the posts for the Woodcraft "tool rest system". I looked at the large bowl support for the "one way" bowl curve, but it is too short for the G0766. I have the Robust 6" TR which is 7 3/8" overall length and it only sets in the banjo 1 1/8". The one way is only 5 3/4" overall. I would like to get the Woodcraft system but the posts are too short (5" max), so I would like to make my own therefore I need the thread size. I want to get the curve and 12" one. I drilled out my banjo to 1" (to fit the Robust 6") which is now oversized for the original. The Robust ones are too expensive for me. I can get the Woodcraft "tool rest system" for about 1/2 the cost.