- 1/2" DR. Spline Bit Socket-M10 - Specialized Function: Designed for the removal and installation of freewheel pulleys on alternators. - Efficient Operation: Ideal for dismantling and assembling freewheel pulleys when changing alternators or pulleys. - Secure Grip: The bit on the 1/2" DR. socket holds the pulley shaft in place while the nut is loosened using a 33-teeth union nut with a 19mm spanner. - Broad Compatibility: Works with generator brands such as Bosch, Valeo, Magneti Marelli, and Denso. - Versatile Use: Interchangeable components make it suitable for vehicles including VW, Audi, Citroën/Peugeot, Mercedes, Renault, BMW, Fiat, Ford, and Toyota.