Engine Alignment Bar Tool Compatible for MerCruiser Sterndrives including: Pre-Alpha "R", Alpha One "MR", Generation II, all Bravo models. This Tool is similar to MerCruiser P/N 91-805475A1 which used to be P/N 91-57797A3. Compatible for Volvo SX P/N 3851083 and OMC Comba P/N 18-4442 Tool is made from high quality 1045 Steel. Gimbal Bearing Puller Tool Will remove bearings on Mercruisers, OMC and Volvo Cobra Bell Housings. Compatible for Mercruiser Alpha, Alpha 1, MR, Bravo, OMC Cobra, and Volvo. Tool is made from high quality 1045 Steel, not a casting! Alignment Tool Comes Without Black Oxide Coating.Gimbal Bearing Installation Tool. This tool Compatible for OMC Cobras, Bravos, #1 Drives made from 1966 to Current makes, including the Pre Alpha(R), Alpha 1 MR and Generation 2. We have directions on where to drill the hole in the alignment tool for correct lineup. We cannot pre-drill these as different manufacturers make the mounts in different places. Please send us a message and we will email it at your request. ***Tool Comes with Black Oxide Coating For Years of Use*** The Steel is purchased locally from an American Supplier in Chicago. The CNC Machining is done in our own shop in Chicago. The eyebolt is purchased from a local company in Chicago. The Box you will receive it in is made in the United States. We have instructions on how to use the tool! Please send us a message and we will email it at your request.