Retiton Cutting Wheel Kin no Tamago 105x1.0x15 3 boxes, 30 pieces per box, unused/unopened Abrasive/Grain Size/Hardness: AZ60P Maximum Peripheral Speed (m/s): 80 Maximum Rotational Speed (rpm): 14400 This item is new, unused, and unopened. Due to warehouse storage, there may be some scratches on the outer box, but there is no problem with the product's performance. I have many other items for sale. Thank you for your consideration.