[ ASSISTANT]For removing and installing valve cores in charged systems. Replace Leaking valve cores quickly and easily. Dual size to work on charge systems of R410a or R22 or other retrofit replacements systems.[WELL-MADE] The valve core remover installer is made of solid brass, which is durable and won't rust easily, and the metal knobs are in anti-slip knurling design, which is durable and you can use them for a long time.[TIME-SAVING]the core grabber makes it easy to insert it into the inner valve, so you can control the core, needn't to stop the machine or release the refrigerant, you can remove and install the valve cores conveniently, save hours of evacuation and charging time.Valve core removal wrench basic operation:1Pull out the dead point on the stem, close the valve on the , adjust the joint of the to the conditioning interface, and tighten the valve on the conditioning.2Make that the is connected tightly to the conditioning valve, then open the valve on the . Push the stem into the conditioning valve and gently rotate the tail knob of the remover. Find the angle to connect the valve core, and then loosen it.3When the valve core is removed, pull out the stem, close the valve on the valve remover, loosen the screw at of the and take out the valve core. The work is done Note: We suggest that before removing the valve core, close the valve core wrench valve and disconnect the conditioner internal connection.Specification:Item: Valve Core Remover Installer, R410a valve core removal , R22 valve core removal , a/c valve core removal , HVAC valve, core removal , Schrader valve removal , refrigeration condition services for pressurized mini split system.Service ports: 1/4 Inch and 5/16 Inch SAE FemaleBypass ports: 1/4 Inch SAE MaleColor: yellowMaterial: CopperPackage Contents:1Pc * Valve Core Remover Installer1Pc * Valve Core Remover10Pcs * 5V1 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.