Feature 1Multifunctional Application: The included wrench is suitable for adapters of different sizes including 5/16in x 1/4in, 5/16in x 3/16in. These sizes are commonly used for repairing air conditioning and refrigeration equipment. 2Versatile Use: The valve core remover has a wide range of applications and is suitable for home refrigeration equipment, practical and convenient to use. 3Applicable System: The valve core removal tool has dual size of sae 1/4 inch and 5/16 inch ports, applicable for R410, R22, R12, R407, R404, R32 A/C air conditioning systems, and more. 4Durable Construction: The AC valve core remover installer has a golden bottom, which makes them highly resistant to heat, durable and reliable, ensuring a longer lifespan. 5Easy 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, no need to stop the machine. Item Type: AC Valve Core Remover Material: MetalSize: SAE 1/4in and 5/16inWrench Size: 5/16in x 1/4in, 5/16in x 3/16inApplication: For R410, R22, R12, R407, R404, R32 A/C Air Conditioning Equipment Repair Package List 1 x AC Valve Core Remover (16Pcs in Total)