The Hamer Standard. The Hamer of Hamer's. And a vintage 4 digit in all its original glory, the best. For a 4 digit owner to have any work done on it requires a lot of guts, trust, patients, and more trust. A 4 digit owner is very protective of their prized guitar. a re fret was in order for this and after a many months of debate and build up of courage, the 4 digit finally arrived.