I like to use a 310 tool in camp for occasional reloading and to load my wax bullets. I prefer to use the stronger steel handles but they are made calibre specific whereas the later pot metal handles are made with a screw in adapter for each calibre. I got to looking and got busy on the late and milling machine and made a couple of slip in adapters so I can use the 45ACP steel handles for loading both my38's and the wife's 32's. They work just fine and I have the dimensions if anyone wants to make up a set. They do have to be a sliding fit in the handles as friction keeps them aligned.