Mason & Hamlin pianos feature actions that are designed and assembled by Mason & Hamlin using the highest quality action parts and Renner Premium Blue hammers. These action parts and hammers are regarded as the world’s best and produce the distinctive sound for which Mason & Hamlin pianos are famous. The unique action rail, an original design of Mason & Hamlin, is assembled by hand and consists of a square brass tube for extra rigidity, filled with a hard rock maple dowel. The square brass piece tube is C & C drilled, glass beaded, and finished with a coat of lacquer.