6pcs SAC clutch mandrel kit for centring the clutch disc on the flywheel while installing the self adjusting clutch. Can also be used to align new and previously pre-tensioned SAC clutches. Application on BMW vehicles. 5 sizes: 15mm x 23mm, 26.5mm, 28mm, 32.5mm and 34mm. Centering sleeve: 15mm, 32.5mm.