RACO tools found on eBay. These are still in their catalog today along with 2 sizes of fittings. The 1 inch versions of the tool and fittings have been discontinued. Interestingly, if you pull off the yellow handles, they say Briegel underneath. They do have RACO part numbers on them though, so these are not a 607 and a 608, but a 1962 and 1963. I have not ordered them new from RACO, so I don't know if they still look like this or not, but they fit the catalog description. I wonder if the new ones still say Briegel too.