2 EACH REAMERS  6.75" LONG, SMOOTH SHAFT ON BOTH ENDS, WE PURCHASED THESE AT A GOV SALE. WE HAVE BEEN UNABLE TO FIND ANY INFO ON THEM.  WE TOOK A PIECE OF THIN METAL AND DRILLED A PILOT HOLE THEN TOOK THE TOOL AND DRILLED THE TOOL THROUGH THE HOLE . THE HOLE MEASURED .416"  ONE END OF THE SHAFT IS .249" IN DIAMETER THE OTHER END IS .368".  THESE ARE SOME #' S THAT ARE ON THE TOOL OR PKG.   R5,  605503, 98747/8930402-03.   THESE ARE NEW IN THEIR PACKAGE.  THEY WORKED GOOD FOR US ON WOOD AND PLASTIC BUT STRUGGLED ON THIN METAL.           IF YOU KNOW ANYTHING ABOUT THESE I/E WHAT THEY WERE MADE FOR.  PLEASE MESSAGE US.   WE HAVE MANY OF THESE.   WE WOULD ENTERTAIN A OFFER FOR 20 OR MORE.   CK OR STORE FOR OTHER SIZES.