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、Adopting a large chip removal port design, which is particularly beneficial for chip removal, and can improve work efficiency. 2、The opening of this hole opener is neat, smooth, without broken edges, and has low cutting resistance. 3、Using sophisticated production technology, has excellent performance, high bearing capacity, and fast opening speed. 4、Has large torsion, can effectively prevent slippage, the clamping is more stable, and the handle is not easy to break. 5、Can be used to drill hard and brittle materials such as glass, ceramic tiles, stone, floor tiles, marble, etc. Specification: Item Type: Hole Opener Material: Adamas Uses: Can Be Used to Drill Hard and Brittle Materials for Glass, Ceramic Tiles, Stone, Floor Tiles, Marble and Other Materials Length: Approx. 65mm / 2.6in Maximum Aperture: 40mm / 1.6in Shank Type: Triangular Shank Package List: 1 x Hole Opener Package List 1 x Hole Opener