Upgrade Valve Cores: Premium-quality 1/4 inch & 5/16 inch SAE valve core removal tool HVAC. This valve core remover installer tool is made of heavy-duty brass and stainless steel and has a longer service life than ordinary valve cores, strong resistance to fluorine, and stronger heat. Wide Application: The Valve Core Remover is suitable for home refrigeration equipment, dual size( SAE 1/4 inch & 5/16 inch Port ) design makes the valve core remover installer tool be compatible with R22, R12, R407, R410, R404, R32 A/C air condition systems, etc. (Not suitable for Automotive AC) Easy to Install: The valve core remover installer tool 's core tool makes it easily inserted into the inner valve core to control the core. There is no need to stop the machine or release the refrigerant. HVAC Service Wrench Set: Refrigeration wrench set are made of premium stainless steel, 4 in 1 valve wrenches size include 1/4 inch, 3/8 inch, 3/16 inch, 5/16 inch, these sizes are the most commonly used sizes when repairing air conditioning and refrigeration equipment. Hexagon Adapter: The hexagonal drill adapter is made of S2 material, with a hardness of 60 degrees, which is more impact-resistant than chrome vanadium steel. The hexagonal adapter has a bead structure to prevent it from falling off the handle due to when it is pointed downward. 2 inches long, sizes: 3/16 inch and 5/16 inch. Suitable for the 1/4-inch socket of the HVAC service wrench. Material: Copper Color: As Shown The actual product may have slight color difference or discrepancy, which will not affect the use Package Contents: 1 set Valve Core Remover Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.