Are you sure your bar stock didn't come from a bloom or a slab?

You make your lever from 1018 cold rolled bar stock. If you were making it from a billet it would have a hot rolled surface, which would look ugly, and it wouldn't have square corners; because a billet is a semi-finished piece of steel.

Why don't you tell your customers that you make it from solid bar stock not a sheet metal forming, as the factory makes it.

The edit is that I forgot to answer the premise. Billets are square and the flat stock that's used for the levers was made from a slab. The slab is rolled and, as it keeps getting wider & thinner, it's sheared in half, then the halves are rolled wider & thinner. This goes on until the desired thickness is reached.