durability Metal construction designed for long lasting performance. These pneumatic quick fittings withstand daily wear and tear, making them suitable for intensive use with 4mm air pipes and pneumatic tools. Easy installation Pneumatic male straight connectors offer quick and simple installation. The easy to mount design saves time and effort, enabling you to efficiently set up your pneumatic systems without hassle. Precise connection Equipped with precision threads for a secure, reliable fit. Meticulous threading helps ensure a stable connection and dependable performance under various conditions, providing peace of mind during operation. pressure reliability Engineered to handle pressure environments. These connectors resist dislodging or loosening and maintain a solid connection even under demanding circumstances, supporting safety and efficiency. Use scenarios Workshop tool setup: Connect 4mm air pipes to power pneumatic tools such as impact wrenches, nailers, or grinders. The fittings allow fast tool swaps and consistent airflow. Finishing and painting: Link 4mm tubing to spray guns or air tools requiring steady pressure, benefiting from secure threads and reliable performance. Automation and small scale systems: Use with pneumatic cylinders or actuators in compact automation projects, delivering dependable pressure connections with minimal maintenance.