The only difference is the size of the hammers for the scale of the work. Jewelers should start with the HMR-1 thru 5 Set. Metalsmiths who forge and form heavy stock will pick up one of these larger hammers in the HMR-101 through 105 Set. Those working on very small metal work will appreciate the scale of the HMR-401 through 405 Set.
This set includes;