Manufacturer part / patent number 2497638 is cast into the tool.
VINTAGE LISLE RIDGE REAMER PISTON REMOVER CLARINDA IA ENGINE MOTOR BORE CYLINDER
Vintage Valve cutting tools, valve seat reamers, ridge reamer
Vintage All-Power Ridge Reamer Tool Pat 2497638 Engine Cylinder Automotive Shop
Vintage Ammco - Lot Of 2 - 3800 Cylinder Hone (needs stones) - 2100 Ridge Reamer
???????? Snap On Tool Engine Cylinder Ridge Reamer Cutter Hone Adjustable 3-5” Lathe
Ammco ridge reamer model 2100 Made In USA
