Features: brand new and high quality ● Allows the alternator shaft to be fixed when the pulley holder is removed. ● Easily remove the flywheel pulley from the alternator on or outside the vehicle. ● Lock the alternator, allowing the central locking bolt to be loosened from the pulley. ● Special spline and Torx socket bit set for disassembly of drive pulley of for Bosch alternator. ● The choice of 33-tooth response nut and additional adapters expands the range of applications available for this kit. Specifications: Material: Chromium vanadium steel Purpose: auto maintenance tool Scope of application: car repair Box color: blue Number of sets: 5 pieces Package Includes: 5PcsxAuto Repair Tools note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.