The high segments of this cutting disc are made from an advanced matrix of metal and diamond, which remains extremely sharp. These segments are laser-welded onto a hard steel body. The sides are ribbed to remove dust, improving efficiency and longevity. This combination of optimal diamond grain and advanced design gives the Bosch Expert MultiMaterial X-LOCK diamond cutting disc unmatched durability. It cuts more reliably and lasts longer than other Bosch diamond blades, ultimately providing excellent value for money. With X-LOCK, a single click is all it takes – the fastest accessory change system on the market. It also fits angle grinders with nut and thread.