Bosch 2608584814 - Power Change Adapter Accessories for Sheet Metal Hole Saw is suitable for unique sheet metal material. It offers high durability while cutting holes through metal. Bosch Power Change Adapter is made up of bi-metal HSS containing 8 % of cobalt alloy for extreme resilience. It also helps in extending the lifetime of the device. It has a configuration of teeth on the vario tooth strip. This adapter is an ideal option for sawing with reduced wear on the cutting edge. It also has a depth stop feature that prevents breakthrough from protecting the work surface.