Bosch BSH594211 Progressor Holesaw for Wood & Metal 38mm The Bosch Progressor Holesaw with a progressive tooth strip provides optimal cutting performance and fast chip clearance. Made of bi-metal HSS (high-speed steel) containing 8% cobalt alloy, this holesaw has less risk of tooth breakage and higher heat resistance for extreme resilience and durability. BSH594211 Features: Unique Power Change adaptor with the fastest arbour system on the market. It allows for locking and unlocking the holesaw and pilot drills in one click. Areas of use: wood, metal and plastics. Suitable for use with all corded and cordless drill drivers. BSH594211 Specification: Diameter: 38mm Working Length: 40mm What is included: 1 x Progressor Holesaw for Wood & Metal 38mm