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、60 Degree Chamfer Bit: The diamond beveling chamfer bit is 60 degree bottom angle, helps you create many different hole sizes with one standard core bit. 2、High Hardness: The countersink bit is made of diamond, with extremely high hardness and good chemical stability. 3、Stable and : Vacuum brazing technology and 80 grit make the diamond beveling chamfer bit more . 4、Hole Shaping: This diamond milling bit is used for hole shaping, widening and chamfering, bringing a smoothly, beautiful hole finish. 5、Wide Range of Applications: The diamond milling bit is suitable used for ceramics, hard ceramics, granite and marble. Specification: Item Type: Diamond Beveling Chamfer Bit Material: Diamond Package List: 1 x Diamond Beveling Chamfer Bit Note: This is not a core drill bit for drilling, it doesn't punch holes, but when the edge is chipped or needs to be cleaned, it slopes the hole, cleans and reinforces the edge. Package List 1 x Diamond Beveling Chamfer Bit