big diameter abrasive discs for metal,stainless steel,stone cutting medium hard fast working speed durable working lif CHARACTERISTICS: made ... of the discAPPLICATIONS: general purpose abrasive disc for all metal cutting applications, like normal steel pipe, steel bar, steel plate and ... .2×25.416×1/8×1A30Q72 T41 big diameter abrasive cut off discs,70m/s