Features High Quality 5V 1-Channel Relay Module: This module offers high-quality performance with a 5V power supply and 1-channel bistable self-locking relay, ensuring reliable and efficient . Convenient Trigger Control: Easily activate the relay by clicking the trigger port to pull it in and hold, and click again to disconnect, providing convenient and intuitive control. and Long Service Life: Constructed with high-quality materials, this relay module is and has a long service life, ensuring lasting reliability for your applications. High Accuracy and Strong Stability: With high accuracy and strong stability, this relay module is easy to install and use, delivering and reliable performance for various applications. Safe Low Pulse Trigger: The trigger mode is a low pulse trigger, providing a more convenient and safer for your peace of mind. Features: 1、Reliable Material: Tube cutter flaring tool kit is made of heat treated steel material for maximum strength and longevity. Swivel made of chrome plated alloy steel to reduce friction. 2、Strong Performance: Alloy steel cutting wheel blades are corrosion resistant, and the pipe cutter stays the same length when used in restricted areas. 3、Easy Storage: Expander tool kit includes a carrying case with handle for easy transportation, safe storage and quick organization. 4、Easy to Use: Select the correct head, place it on the tool and make a quality swage. Simply press release trigger for easy tube release, ensuring no metal damage. 5、Wide Application: Expander tool kit is widely used in refrigeration, petrochemical, power, shipbuilding, metallurgical and other industries of the condenser, coolers, heat exchangers, boilers and other pressure vessel manufacturing and maintenance . Specification: Item Type: Expander Tool Kit Material: Chromium vanadium steel Reaming Specification: 3, 5, 6, 8, 10, 12, 14, 15, 16, 19mm(1/8in, 5/32in, 1/4in, 5/16in, 3/8in, 1/2in, 5/8in, 3/4in) Cutting Diameter: 3 to 19mm / 0.12 to 0.75in Use: Manual tube expander is widely used in the field of household electrical products such as air conditioners, air energy water heaters, and refrigerator maintenance. They are characterized by simple , convenience, wide use, and durability. They are the most common and necessary tools for household maintenance or repair departments. Package List: 1 x Reamer 4 x Tube Expansion Heads 2 x Clamping Heads 1 x Pipe Cutter 1 x Storage Box Package List 1 x Reamer 4 x Tube Expansion Heads 2 x Clamping Heads 1 x Pipe Cutter 1 x Storage Box