A stud remover and installer kit designed to allow the extraction and fitting of studs without damage. The specially designed fitting tools allow the stud to be correctly torqued up without risk of damage to the stud thread. Contents: M6 x 1.0, M8 x 1.25, M10 x 1.25, M10 x 1.5 & 6mm Hex Key.Suitable for the most popular cylinder head and manifold stud sizes. Use 6mm Hex key (supplied) to lock the tool on to the stud. Packed in an EVA foam storage tray.