Upgrade your HVAC toolkit with this professional-grade Copper Tube Expander and Swaging Set – engineered for efficiency in air conditioner repairs. Featuring 6 precision-machined sizes (1/4" to 7/8"), our hex-shank adapters transform your standard drill into a powerful tubing workstation, reducing flare time by 70% compared to manual tools. The corrosion-resistant chromium-vanadium construction ensures burr-free, smooth flares on copper tubing every time, while color-coded identifiers prevent sizing errors during critical HVAC/R jobs. Backed by drop-tested durability, this kit withstands daily jobsite demands. **Why Technicians Choose Us:** ✅ OSHA-compliant non-slip grips ✅ 100% leak-proof flare guarantee ✅ Fits DeWalt/Milwaukee/Makita drills ✅ Compact case fits in truck toolbox Ideal for residential AC maintenance, commercial refrigeration, and automotive AC systems.