1. Waterproof and dustproof structure, with good durability in CNC machining operations. 2. It can greatly improve the tool setting efficiency in CNC machining. 3. When the stroke is exceeded, it sound an alarm. 4. Automatic detection of tool damage: If the tool is damaged or broken, the machine automatically stop running and issue a warning. 5. Automatic tool wear compensation: Once the tool head wear is detected, the relevant program can be corrected to the accuracy of the workpiece. Installation Notes: 1. The pillar and the tool setting device must be perpendicular to the contact and perpendicular to the contact . Please install them on a workbench with small iron filings as much as possible. 2. Make sure to use the voltage within the rated power supply range, please control DC10-30V, the current is less than 20mA, and the ambient temperature range is -25C-70C. 3. Please control the tool diameter to be less than 20mm, and the cutting speed to be less than 50-200mm/min. The center of the tool should fall on the center of the tool face. Style: normally closed Material:Metal colour:Silver + Black Package Contents: 1 * Automatic Tool Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.