This specific alternator tool kit has special bits for the installation of the drive pulley. The drive pulley is attached by 33-tooth inserts. The set includes all necessary sleeves and plungers to change the bearing-ball joints. The included inserts are suitable for special operation on Bosch and Renault alternators. This alternator toolkit contains adapters for VW, Audi, BMW, Mercedes and Ford. Hex bits (6 hex drive): 8 and 10 mm Spline bits (6 hex drive) M8 + M 10 T-profile bits (6 hex-drive): T 40 and T 50 2 stationary bits M 50 and M 10: with 33-tooth-captive use Special insert for: Bosch and Renault alternators Includes adapter for: VW, Audi, BMW, Mercedes and Ford SKU: 210031 EU responsible party Haba Trading B.V. Mary Kingsleystraat 1 5928SK Venlo The Netherlands Compliance-safety@vidaxl.com