Features: 1.4 in 1 Multifunctional: The included wrench is suitable for adapters of different sizes including 1/4 inch, 3/8 inch, 3/16 inch, and 5/16 inch. These sizes are commonly used for repairing air conditioning and refrigeration equipment. 2.Wide Application: The valve core remover has a wide range of applications and is suitable for home refrigeration equipment, practical and convenient to use. 3.Applicable System: The dual size 1/4 inch and 5/16 inch ports make the valve core removal tool applicable for R410, R22, R12, R407, R404, R32 A/C air conditioning systems, and more. 4.Durable And Reliable: The AC valve core remover installer has been upgraded with a golden bottom, which makes them highly resistant to heat, ensuring a longer lifespan. 5.Easy to Use: With the valve core remover installer tool, you can easily insert the valve core rod into the internal valve core and control it. There is no need to stop the machine or release refrigerant. Specification: Item Type: AC Valve Core Remover Material: Alloy Steel Applicable AC System: For R410, R22, R12, R407, R404, R32 A/C Package List: 1 x AC?Valve?Core?Remover (13Pcs in Total)