Can I just say thanks for the efforts, links advice, and then intervention of Chakster!
My next point is this.
My machinist is actually very good, but the FR uses a 25TPI thread which is not standard, not only that but the base is something like 29.37mm diameter -
My next point is this.
My machinist is actually very good, but the FR uses a 25TPI thread which is not standard, not only that but the base is something like 29.37mm diameter -