Spare grinding wheels for EFCO - PROGRESS - SABART chain sharpeners 1) Ø 123 x 3.0 - hole 22 mm cod. 003734 2) Ø 123 x 4.5 - hole 22 mm cod. 003719 To purchase the disc you need, select the item in the drop-down menu above. The price refers to the purchase of 1 piece AT