Starrett bi-metal hole saws are manufactured with an alloy steel body and teeth in high-speed steel with extra cobalt, they are milled, setting, punched and hardened/tempered in strict accordance with the Starrett Quality standard (ISO 9000).
Starrett bi-metal hole saws are manufactured with an alloy steel body and teeth in high-speed steel with extra cobalt, they are milled, setting, punched and hardened/tempered in strict accordance with the Starrett Quality standard (ISO 9000).