Lasts up to 10 times longer than laser-welded carbide. The ability to remove old grout is a unique feature that has made the oscillating multi-tool a favorite among tilers and bathroom installers. However, removing mortar can be challenging: only the best blades can meet the demands of professionals for their multi-tools. The Expert Grout Segment Blade offers an extremely long lifespan thanks to the advanced use of diamond. Bosch Diamond Technology provides a fine cutting edge made of high-quality diamond grains, ensuring maximum wear resistance in tough mortar. These grains are hard enough to allow the blade to be used for other purposes: it can also make small adjustment cuts in soft tiles. For tilers, plumbers, and anyone needing to cut grout, diamonds are the top choice. Starlock attachment for maximum power transfer and convenient blade changes in just 3 seconds. Material: Diamond, Diameter: 85 mm.