General description A 20 piece wheel nut set designed specifically for Vauxhall and Opel vehicles, ideal for situations where the original key is missing or lost. This set is suitable for use in tyre fitting bays and garages, covering a wide range of Vauxhall/Opel models. Technical specifications 20 piece set Compatible with OEM key numbers: Z16512-101 to Z16512-120 Designed for use with a conventional 17mm wheel nut socket Usage Applications include: Agila, Astra F/G/H, Calibra, Corsa B/C/D, Meriva, Omega B, Signum, Speedster, Tigra A/B, Vectra B/C, Zafira A/B Not suitable for use with impact tools