Product Attribute:
Applicationt: 
Changan, Honda, Hongqi, Jinbei, Kia, Mazda, Nissan, Peugeot, Skoda, Toyota
Production Description:
Description:
This tool doesn't fit for big valve core ,only for standard R134a and R12 valve core.
NO GAS LOST !! A must have in the HVAC, Refrigeration and Automotive Industry
Saves Time and Money-You don't have to pump the system down or evacuate the refrigerant,This tool removes the old and installs the new schrader valve core in one EZ STEP on fully charged systems
Please understand how this tool works:
Removing & Replacing the Valve Core
At this point you should put the gloves and goggles on, and then you can replace the valve core(s) as described below. Note that I only needed to replace the low-side valve, but you would follow the exact same steps to replace the high-side valve (except that you would use the tool that is specifically for the high-side port in that case).