1. Waterproof and dustproof structure, with good durability in machining operations. 2. It can greatly the tool setting efficiency in machining. 3. When the stroke is exceeded, it will sound an alarm. 4. Automatic detection of tool damage: If the tool is or broken, the machine will 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 surface and perpendicular to the contact surface. Please install on a workbench with small iron filings as much as possible. 2. Make to the voltage within the rated supply range, please control DC10-30V, the current is less than 20mA, and the ambient temperature range is -25°C-70°C. 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 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 the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.