• Suitable for repairs on Bosch, Denso and Siemens injectors.• 6.6, 7.6mm Hex security bits 20mm Hex/1/2"Sq Drive.• 16mm 8-sided socket for Bosch common rail injectors.• Denso common rail Injector valve seat removal tool.• Injector ball valve lapping tools and guide.• Manufactured from Chrome Vanadium steel and S45C.• Supplied in storage case.Suitable for repairs on Bosch, Denso and Siemens injectors. 6.6, 7.6mm Hex security bits 20mm Hex/1/2"Sq Drive. 16mm 8-sided socket for Bosch common rail Injectors. Denso common rail injector valve seat removal tool. Injector ball valve lapping tools and guide. Manufactured from Chrome Vanadium steel and S45C. Supplied in storage case.• Suitable for repairs on Bosch, Denso and Siemens injectors. • 6.6, 7.6mm Hex security bits 20mm Hex/1/2"Sq Drive. • 16mm 8-sided socket for Bosch common rail injectors. • Denso common rail Injector valve seat removal tool. • Injector ball valve lapping tools and guide. • Made from Chrome Vanadium steel and S45C. •