The 50mm crankshaft pulley holder is designed to facilitate the removal and installation of the crank bolt compatible with and compatible with engines. Used with a 1/2 inch breaker bar or ratchet, this crankshaft pulley removal tool prevents the harmonic damper pulley from rotating while removing and setting the final specification on the pulley bolt. When servicing the engine and drivetrain, it can be widely used for removal and installation. The tool's design features a hexagonal shape with a hole in the center of the tool that allows for the use of a socket and extension to loosen or tighten the pulley bolt. Used when loosening/tightening the mounting bolt. Material: Metal color: black Package contents: 1 x Crankshaft pulley holder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The allowed measurement error is +/- 1-3 cm.