recently came across an old 444 ridgid bolted down to a pallet. Probably weighs 2-3 hundred pounds. It had a everything on it cutter, 2-4" die and reamer. It also had about 4 additional die heads that fit a much smaller ridgid threader. Can these other die heads fit into an adapter to use on this bigger throat machine? The mounting is different for these heads and I was a little confused so I didn't buy it. Need help.