How to make KEYWAY on the LATHE

I ANSWER ALL EMAILS AND WILL TRY TO WORK WITH YOU AS BEST I CAN. PLEASE SEE THE PHOTOS FOR THE BEST DESCRIPTION. Please see my other auctions for more tools items from a local estate. Machinist tool lathe mill machinist large carbide milling mill saw blade ofce this item is in the category collectibles\tools, hardware & locks\tools\machining.