Service valve cores without losing the system charge.
Unique design offers a locking device that holds the shaft in place
   while removing or installing the valve cores.
Contents：
    1. Valve assembly
    S. Standard valve core remover / installer
    G. GM large bore valve core remover / installer
    J. JRA R134 valve core remover / installer
    V. Volvo and 8mm valve core remover / installer
    6. R134a H φ16 connector
    7. R134a L φ13 connector
    8. 5/16"FL swivel connector
    9. M12 x 1.75 FL swivel connector.

    10. Adapter 1/4"M x 3/16"F
    11. Adapter 1/4"M x 1/2" ACME F
    12. H14 Wrench

    13. 2 sides valve core Remover