Multifunctional HVAC Service Wrench Set --- The hvac service wrench set are made of premium stainless steel, 4 in 1 Valve wrenches size include 1/4", 3/8", 3/16", 5/16", these sizes are the most commonly used sizes when repairing air conditioning and refrigeration equipment. Hexagon Head Adapter --- Premium alloy steel and surface heat treatment, 2 inch long, size: 3/16'' and 5/16''. Suitable for the 1/4 inch socket of the HVAC service wrench. The hexagonal head adapter has a bead structure to prevent it from falling off the handle due to gravity when it is pointed downward.HVAC Wrench Tool AC Schrader Valve Core Remover Set 1/4 and 5/16 Port InstallerValve Core Remover Installer Tool and HVAC Service Wrench Set with Hex Bit Adapters, Dual Size SAE 1/4 & 5/16 Port, 3/8” to 1/4”, 5/16'' x 1/4'' Refrigeration Service Wrench, 10 PCS Valve Core About this item Multifunctional HVAC Service Wrench Set --- The hvac service wrench set are made of premium stainless steel, 4 in 1 Valve wrenches size include 1/4", 3/8", 3/16", 5/16", these sizes are the most commonly used sizes when repairing air conditioning and refrigeration equipment. Hexagon Head Adapter --- Premium alloy steel and surface heat treatment, 2 inch long, size: 3/16'' and 5/16''. Suitable for the 1/4 inch socket of the HVAC service wrench. The hexagonal head adapter has a bead structure to prevent it from falling off the handle due to gravity when it is pointed downward. Wide Application Core Remover Installer Tool --- The Valve Core Remover Installer Tool with Dual Size SAE 1/4 & 5/16 Port, made of pure copper, the ball valve can be opened and closed in just a quarter-turn. Curved design increase hand friction, prevent all kinds of overpowered valves. It compatible with R22, R12, R407, R410, R404, R32 A/C air condition system, etc. (Not suitable for Automotive AC) Upgraded Valve Cores --- The bottom of the valve cores are made of durable stainless steel material, strong resistance to fluorine and heat, has longer service life than ordinary valve cores. We recommend you use a dab of vacuum grease on the end of the probe to insure that the schrader valve stays attached to it during core removal. What You Get --- 1PC Valve Core Remover Installer Tool, 1PC Dual Size SAE 1/4 & 5/16 Port, 1PC 3/8” to 1/4” HVAC Service Wrench, 1PC 5/16'' x 1/4'' Refrigeration Service Wrench, 2PCS Hex Bit Adapters, 10 PCS Valve Cores. If you have any questions, 24/7 support when you need it.Product Description Package Included: 1pc x Valve Core Remover Installer Tool 2Pcs x Hvac Service Wrenches 2Pcs Hexagon Head Adapters 1pc x R410 R32 Brass Adapter 10Pcs x Valve Cores Specification Material: CopperService ports: 1/4" and 5/16" SAE FemaleBypass ports: 1/4" SAE MaleConnection: 1/4" and 5/16" SAE valve core remover and install tool can adapt to R22/R134/R410/R32R air-condition, external bypass port design can remover valve cores. Works great for both Minisplit systems as well as 1/4" service valves on split systems. Easy to Install The Schrader's core grabber with disconnect valve, the tool can be easily inserted into the inner valve core for removal or installation.Built-in disconnect valve for easy operation, no need to stop the machine, no need to release the refrigerant. Great Design The valve core remover installer tool is made of pure copper; The metal knob is all designed with anti-slip design.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. Standard sizes Wrench is clearly marked with 4 standard square sizes.1/4", 3/8", 3/16", 5/16", these sizes are the most commonly used sizes when repairing air conditioning and refrigeration equipment. Non-slip Design Professional tool that makes the job easier.A Good refrigeration service wrench can avoid falling off the handle. 2 pcs Hexagon Head Adapte Premium alloy steel and surface heat treatment.Suitable for the 1/4 inch socket of the HVAC service wrench. 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