The Bosch 2608594245 HSS-Bi-Metal Holesaw offers 2x longer life The Bosch 2608594245 HSS-Bi-Metal Holesaw has a diameter of 127mm and a working length of 44mm. BiM Progressor Hole Saw offers 2x longer lifetime than its predecessor. It has been redesigned with Bosch Bi-Metal with 8% cobalt alloy for increased durability. Additionally, it has an enhanced progressive tooth strip that enables faster cuts. Use this hole saw when drilling holes in wood, drywall, plastics, metal, non-ferrous metal and stainless steel. It is suitable for use with all corded and cordless drill drivers. Features: Suitable for multipurpose use Enhanced progressive tooth strip enables faster cuts BiM Progressor Hole Saw offers 2x longer lifetime than predecessor Redesigned with Bi-Metal with 8% cobalt alloy for increased durability Specification: Diameter: 127mm / 5in Working Length: 44mm Part Number: 2 608 594 245