Features [Easy to use] No need to rotate for measurement. [Main purpose] The electronic edge finder with led beep can measure the X and Y ax-is coordinates of the workpiece. [Scope of application] This cnc electronic edge finder is suitable for traditional milling machines and comprehensive processing machines. [Durable] Precision stainless steel probe, sturdy and durable. [Efficient and fast] The electronic edge finder can help you quickly find the edge of the workpiece. 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