Brian I have and used the Impeller tool as well as the water bellows retaining tool. The impeller tool can be used on Pulsamatic, Mutlimatic and Rollermatic washers from the 50's and 60's to hold the pump impeller steady while you loosen or tighten it's lock nut. The oil bellows tool is used to open or close the bellows retaining ring, this can be used on all Unimatics, Multimatics, Pulsamatics and Rollermatics.
As for the other two, they are for the Rollermatic only. I have seen them before but I have not done much work on rollermatic washers so I can't say for sure.
