Lasts up to 50 times longer than an HCS hole saw in tough materials - Cutting holes in brick, soft tile and drywall is essential for plumbers and electricians on a construction site or during renovation work. Few hole saws can withstand this kind of work with various robust building materials. For the Expert Construction Material, this is possible. With one hole saw, many jobs can be done over a long period of time. With only a few large carbide teeth on the steel body, the Expert Construction Material offers a firm bite. The large slots are optimised for fast chip removal. The hole saw penetrates brick, wood and chipboard quickly. The Bosch Carbide Technology (Bosch Carbide Technology) is an optimal blend of the hardest metals and offers extremely long life. The Bosch Expert Construction Material hole saw is a robust hole saw that is very useful on the construction site. It offers professionals a high added value because it is very durable. For use with the Bosch Power Change Plus quick-change adapter: for accuracy and robustness. Diameter mm: 20; 25; 32; 38; 51; 64, working length mm: 60