- Set of grinding wheel. One set consist [- Set of grinding wheel. One set consists of 02 items, 02 nos. Item 1- Medium grade ( 36- 60 Grit ), Qty- 1 No./ set, Item 2- Fine grade ( 80- 120 Grit ), Qty- 1 No./ set Grinding wheels of size 400 mm ( OD ), 50. 8 mm ( ID ), 50. 0 mm ( Thickness ). Make- Bosch, Grind well, Hitachi or similar. Fine grade A80O6V99 and medium grade A30P5V99. ]