Lasts up to 10 times longer than laser-fused carbide - Removing old grout is a unique skill that has made the oscillating multi-function tool a favourite with tilers and bathroom fitters. But grout removal can be tricky: Only the best blades can meet the demands professionals place on their multi-function tool. The Expert Grout Segment Blade offers an extremely long service life thanks to the advanced use of diamond. Bosch Diamond Technology provides a fine cutting edge made of high-quality diamond grains that offer maximum wear resistance in hard mortar. These grains are hard enough to use the blade for other purposes: It can also make small adjustment cuts in soft tiles. For tilers, plumbers and anyone who needs to cut out grout, diamonds are the very best choice. Starlock mount for maximum power transmission and convenient blade change within 3 seconds. Material: diamond, diameter [mm]: 85