... durable working life CHARACTERISTICS: made of normal grade corundum(Aluminium oxide, White aluminium oxide, or silicon carbide), Veins #, black color, 1netAPPLICATIONS: flexible ... for steel, stainless steel, or for glass, marbel, brass, and aluminium ,etc.ITEM NO.DIMENSIONmmDIMENSIONinchMGHSpeedm/sE3WA1C30111103×3.0×164×1/8 ... ×1/8×5/8GC220Q72 abrasive flexible grinding disc for steel, GC wheel