Application� Suitable for cutting stainless steel �hard alloy, etc. Machine�Used on portable angle grinder Usage� Preparation work before welding, grinding weld, cleaning burr & rust, surface polishing, edge grinding, etc. Advantage: High grinding efficiency, long service life, high cost performance, comfortable for operator. Specifications: D�H�d D�H�d ABRASIVE GRIT HARDNESS MAX. R.P.M. Standard Packaging 100X4X16 4"X1/6"X5/8" WA 46 Q 15200 280 100X6X16 4"X1/4"X5/8" WA 30 Q 15200 200 125X6X22 5"X1/4"X7/8" WA 30 Q 12200 100 150X6X22 6"X1/4"X7/8" WA 24 Q 10200 100 180X6X22 7"X1/4"X7/8" WA 24 Q 8500 80 According to customer's requirements.