9X1/4X7/8GEMINI FAST CUTMIMI DISC TYPE 27 WHEEL Unique, patented mini-mount for 4 1/2" wheelsFast Cut - re-engineered for quick stock removal on hard materialsLong Life - excellent life and cut rate on stainless steels and metals Dia.: 9 inThickness: 1/4 inArbor Diam: 7/8 inAbrasive Material: Aluminum OxideSpeed: 6600 rpm [Max]Applications: GrindingApplicable Materials: Metal, SteelStyle: Fast CutWt.: 1.47 lb