- Professional HVAC Tool: The HVAC Core Removal Tools are essential for efficiently removing and installing valve cores in charged systems. Quickly replace leaking valve cores without hassle. Compatible with R410, R22, R12, R407, R404, R32, and R600 A/C systems. Note: Not for Automotive AC applications. - Durable Construction: Crafted from heavy-duty solid brass, this Valve Core Removal Installer Tool Kit is built to last and resists rust. The anti-slip knurling on the metal knobs enhances grip and reliability. The included R410a, R32 Adapter (1/4" male SAE to 5/16" female SAE) ensures convenience in everyday tasks. - Time Efficiency: This AC Schrader Valve Core Removal Tool simplifies the insertion into the inner valve. Its external bypass port design allows for easy removal of valve cores, significantly cutting down evacuation and charging time. - Comprehensive Kit: The HVAC Core Removal Tool Kit includes one 1/4" & 5/16" Valve Core Remover Installer Tool, one R410 R32 Brass Adapter, ten 5V1 Valve Cores, and one classic Valve Core Remover. - Practical Applications: Ideal for HVAC technicians performing maintenance on residential air conditioning systems, the tool can also be used for servicing commercial refrigeration units. Its dual size feature makes it versatile for various tasks, ensuring you have the right tool for the job.