Madison muskegon machinist cutting blades inserts lot

Madison muskegon machinist cutting blades inserts lot

12 Brand New Madison & Muskegon Cutting Bits Blade Inserts. They are in MINT Condition and most still have a Factory Protective Wax/Rubber Coating on them, along with a coating of oil/ grease. All are Brand New, except a couple are missing their Protective coating. The blades missing their coating are extremely sharp. They range in size from 1.375 inch to 2.437 inches. I don't know what shaft they attach to, but they all have the same configuration, slot and thickness, so it would be the same one for all. Someone out there knows what these are for.