Great Compatibility: Fits for all mercruiser Alpha one, Alpha One Gen Two, Pre Alpha, Bravo One, Trs outdrives will also fit for Mercury / for Mariner outboards 150HP and up. Superior Material: Both are made of High Standard Carbon Steel with Black Finish, Great Strength and Durability,Anti-Corrosion &No Deformation. Bearing Carrier Retainer Nut Wrench: Used to remove and install bearing carrier retainer nuts on on Bravo One, MC-1, R-MR, Alpha One/Gen Two, TRS drive units and outboards. Removes 4-3/8" retainer nut. Not fit for Bravo 2, 3, XR, or TR. Bearing Retainer Spanner Wrench: .
