The unique diamond grit edge cuts most tile and masonry materials. Ideal for porcelain, granite, ceramic, marble, brick, stone, etc. Allows for flush cutting and standard cut-off applications up to 3/4". Lasts 8 times longer than Rotozip Model No. RZDIA1 (SKU 394181) cutting wheel. Maximum speed: 15,000 RPM. 1 per pack. 3/8" arbor.