Great Function: The valve core remover installer tool's core tool makes it be easily inserted into the inner valve core to control the core. No need to stop the machine, no need to release the refrigera.Premium Quality Valve Sets: The valve core remover installer tool is made of high quality thicker brass the metal knob is all designed with anti-slip design, last long; Easy to operate and install, strong sealing for durability and safety.Extensive Usage: Suitable for all refrigeration equipment, dual size( SAE 1/4inch & 5/16inch Port ) design makes the valve core remover installer tool be compatible with R22, R12, R407, R410, R404, R32 A/C air condition system, etc.Main Features: Anti-slip design, increase hand friction, prevent all kinds of overpowered valves; High-quality craftsmanship probes, rugged and durable, suitable for most equipment.Good Deisgn: Durable, solid brass tool has a ball valve that can be opened and closed in just a quarter-turn, rather than a slower to operate stem-type valve. (No Gas Loss)Attention, it's not suitable for car ac system.Valve core removal wrench basic operation:Pull out the dead point on the stem, close the valve on the tool, adjust the joint of the tool to the air conditioning interface, and tighten the valve on the air conditioning.Make sure that the tool is connected tightly to the air conditioning valve, then open the valve on the tool. Push the stem into the air conditioning valve and gently rotate the tail knob of the remover. Find the angle to connect the valve core, and then loosen it.When the valve core is removed, pull out the stem, close the valve on the valve remover, loosen the screw at of the tool and take out the valve core. The work is done!Warning: We suggest that before removing the valve core, close the valve core wrench valve anddisconnect the air conditioner internal connection.Colour: Brass + blue silverMaterial: brassPackage Contents:1 * loading and unloading tools1 * reducer4 * valve coreOnly the above package content, other products are not included.Note: Light 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.