12" Diamond Segmented Masonry Cut-Off BladeDiablo's diamond segmented masonry cut off blade provide extreme durability and longer life in concrete, concrete with rebar, brick and cinder block. These diamond rimmed discs deliver up to 2X longer cutting life versus standard diamond cut off discs. The disc's industrial grade diamonds with hardened disc body delivers lasting durability and maximizes cutting quality in hardened materials even in extreme applications.