Lasts up to 50x longer than BiMetal hole saws in tough materials. With its carbide teeth, the EXPERT Tough Material barely slows down when it hits metal - it cuts neatly through and keeps on cutting holes, time and again. Made with Bosch Carbide Technology, each tooth is an optimum grade of the hardest metal, laser welded and ground six times for the perfect cutting shape. This makes the Bosch EXPERT Tough Material Hole Saw ideal for tough jobs and all-round trades work: As well as wood and metal, it's a good hole saw for stainless steel, brick, soft tiles and reinforced plastics. The Bosch EXPERT Tough Material Hole Saw is a great all-rounder for every tradesman because half a hole is not even worth half a hole. For use with the Bosch Power Change Plus keyless arbor: offering accuracy and robustness. It is suitable for use with all corded and cordless drill drivers. The Endurance for Heavy Duty Hole Saw delivers a 20x longer lifetime than any bi-metal hole saw in the toughest materials. Its carbide technology provides additional heat resistance for increased endurance. Furthermore, the saw’s teeth are individually welded, making it extremely durable. Use this hole saw when drilling holes in wood, drywall, bricks, plastics, metal, non-ferrous metal, stainless steel, abrasive materials and soft tiles.