• Save time frustration with instant air-tool and accessory swaps corrosion-resistant solid brass
• Quick-connect couplers save wear & tear on tool fittings, rotate freely to reduce hose kinks
• 1/4" NPT threaded; includes three male-threaded and one female-threaded nipples
• Spring-loaded coupler holds tight without leaks, knurled collar for non-slip hand grip
• Unique shirt-pocket blow gun gets in tight fits, lets you adjust airflow from gentle to full-blast

This is our favorite quick-connect coupler set; we think the shirt-pocket blow gun is worth the price of admission alone! Essential set for auto body and mechanic shops, manufacturing, machinists and construction. Finely machined solid brass for superior non-leaking connections. One-year warranty and Jack's Tool Shed worry-free Satisfaction Guarantee.