Diamond disc ultra thin TOTAL TAC2181151HT is made of high quality alloy. intended for use on hand-held angle grinders when cutting concrete, granite, marble, brick, ceramic tiles and other hard building materials. The reduced blade thickness doubles the cutting speed. High strength diamond segments for efficient cutting. Specifications: Brand: Total Model: TAC2181151HT Type: Cutting Disc Size: 115(4-1/2'')*22.2MM Blade height 10mm Blade Thickness 1.4mm Matrix Thickness 0.8mm Material :75Cr1 With flange plate Packed by double blister