Reamer Sizes & Applications: 15 mm Flat; Various Vehicles, 17 mm Flat (x2); compatible with Delphi/Bosch (BMW, PSA, Ford), Bosch (Mercedes CRD), 17 mm Angled (x2); (compatible with Fiat, Iveco), 18 mm Flat; Various Vehicles, 20 mm Flat; Various Vehicles, 15.5 mm Side Ream