Good Luck Jerry,
You have the best Resizing Tooling option available in the RC World. Made by a tool&die maker in a toolroom enviroment - not a machinest that could not & does not understand alloy reconstruction. You got FOR CHEAP alot of years toolmakers expereance and 8+ years of R&D as it applys to resizing these lttle nitro engine piston+sleeve sets. Go with it and enjoy myfriend
RayAracing