Lasts up to 4 times longer than a standard multi-material diamond cutting disc. On modern construction sites, many different hard materials need to be cut, which puts a lot of strain on the tools. The Expert MultiMaterial cutting disc is the ideal accessory for busy construction professionals who need to cut concrete, bricks, roof tiles, and reinforced concrete, as it simply offers a longer lifespan. The high segments of this cutting disc are made from an advanced matrix of metal and diamonds, which remains extremely sharp. These segments are laser-welded onto a hard steel body. The sides are ribbed to help remove dust, thus improving efficiency and durability. This combination of optimal diamond grain and advanced design features ensures unparalleled longevity of the Bosch Expert MultiMaterial diamond cutting disc. It cuts more reliably and lasts longer than other Bosch diamond discs, ultimately providing excellent value for money. With a 25.4 mm bore, it fits 20 mm bores with reducing rings. Diameter mm: 300, bore diameter mm: 20.00 + 25.40, cutting width mm: 3.0, segment height mm: 15.