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、The yellow tip is made from high quality brass which is wear-resistant, rust proof and 2、High speed steel 4241 drill bit is sharper and has a longer service life than traditional one 3、These hinge bit can reliably and accurately center the holes for mounting hinges and other types of hardware 4、Widely used on wood and plastic, chip will be removed automatically from these two side holes 5、There are 5mm and 1/4inch drill bits that you can choose for boring holes in different sizes Specification: Features: The yellow tip is made from high quality brass which is wear-resistant, rust proof and . High speed steel 4241 drill bit is sharper and has a longer service life than traditional one. These hinge bit can reliably and accurately center the holes for mounting hinges and other types of hardware. Widely used on wood and plastic, chip will be removed automatically from these two side holes. There are 5mm and 1/4inch drill bits that you can choose for boring holes in different sizes. Specification: Material: High speed steel 4241, brass Color: As picture Drill Bit Size: 1/4'', 5mm(Optional) Hex Shank Size: 1/4'' Package Includes: 1 x Hinge Drill Bit Package List