Features No need to rotate for measurement. Suitable for traditional milling machines and integrated processing machines. Quickly locate workpiece edges. Precision stainless steel probe, solid and durable. Can measure X and Y axis coordinates of the workpiece. Specification:Material: Staibless steelBattery: 2 x  12V 23A batteries (NOT included)Shank diameter: 20mm/0.79inProbe diameter: 10mm/0.39inTotal length: 160mm/6.30in  Package weight: Approx. 290g/10.2oz Packagelist:1 x Electronic Edge Finder1 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