The BiM Progressor hole saw offers double the lifespan of its predecessor. For enhanced durability, it is made with Bosch bi-metal featuring an 8% cobalt alloy. Additionally, it has an improved progressive tooth design that allows for faster cuts. This hole saw is suitable for drilling holes in wood, drywall, plastics, metals, non-ferrous metals, and stainless steel. It is compatible with all cordless and corded drill drivers. Diameter: 51 mm, working length: 44 mm.