... price 5.Long Life span Cutting Disc for metalIt is suitable for cutting,grinding precise stainless steel, various ... : 1.Durability, High efficiency and Economic 2. To decrease the loss of the cutted metal 3. No ... speed is 80m/s ,the hardness medium iron to a large amount of wheel wear medium, longer ... life, especially suitable for cutting and grinding of carbon u-steel,alloy ...