Easy to Operate: When you touch the probe of the edge finder to the workpiece, there will be a red light and a beep. Practical Tool: This photoelectric mechanical edge finder can measure the X and Y axis coordinates of the workpiece. Note: This edge finder is an electronic product. Try to avoid the short circuit or corrosion caused by the cutting fluid entering the inside. Unique Point: The photoelectric edge finder has the feature of measuring without turning. Wide Application: This high-precision mechanical edge viewfinder is suitable for use on conventional milling machines and integrated processing machines.