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 job site or during renovation work. Few hole saws can stand up to this type of work with a variety of tough construction materials. For the Expert Construction Material, this is possible. With a 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 optimized for quick chip removal. The hole saw quickly penetrates brick, wood and particle board. Bosch Carbide Technology is an optimal blend of the hardest metals and provides extremely long life. The Bosch Expert Construction Material Hole Saw is a robust hole saw that is very useful on the construction site. For use with the Bosch Power Change Plus quick-change adapter: for accuracy and robustness.