supply of supply of grinding discsupply of grinding disc,supply of grinding disc (with center depression) of size -180 mm (od) x 6 to 7 mm (thickness) x 22.23mm (bore), abrasive grain grade a24sb c onfirming to en 12413 suitable for mild steel grinding maximum operating speed of grinding disc 8500 rpm and for hand grinding machine. make: grindwell norton/carborandum universal. note: 1. items should have residual life of 18 months from the date of supply. 2.oem/authorized dealership certificate should be uploaded along with the offer. 3. month & year of manufacture of discs should be within 4 months at the time of supply. [ warranty period: 18 mo nths after the date of delivery ] ] => limited