itment -- Fits for Mercruiser Alpha One/ Alpha One Gen II Outboards with 13-spline driveshaft. Fits over drive shafts splines.
Function -- Provides a wrench surface to turn the drive shaft on MC-1/R/MR/ Alpha One/Alpha One Gen II drive units.
Material -- Made of high quality steel ensure it can work for a long time. It is also has a Rust-Preventative Zinc Coating to reach an effect of anti-rust and anti-corrosion.