Features Scope of application: suitable for traditional milling machines and comprehensive processing machines. Multi-purpose: can quickly find the edge of the workpiece. The X and Y a-xis coordinates of the workpiece can be measured. Function: When the probe touches the workpiece, a red light and buzzer will appear. Easy to use: no need to rotate for measurement, strong practicability High-quality material: stainless steel probe has high precision, strong and not easy to damage Features: Scope of application: suitable for traditional milling machines and comprehensive processing machines. Multi-purpose: can quickly find the edge of the workpiece. The X and Y axis coordinates of the workpiece can be measured. Function: When the probe touches the workpiece, a red light and buzzer will appear. Easy to use: no need to rotate for measurement, strong practicability High-quality material: stainless steel probe has high precision, strong and not easy to damage   Specification: Material: Staibless steel Battery: 2 x  12V 23A batteries ( NOT included ) Shank diameter: 20mm/0.79in Probe diameter: 10mm/0.39in Total length: 160mm/6.30in   Package weight: Approx. 290g/10.2oz   Package l ist: 1 x Electronic Edge Finder 1 x Storage Case   Note : 1. To ensure measurement accuracy, please do not touch the probe directly with your hand. 2. If it is not used for a long time, please remove the battery to extend the battery life. 3. If the battery power is found to be insufficient, please replace the battery of the same model immediately. Package List