DescriptionAre you find a useful and portable edges finder? Then our product can meet your demand, made of premium material, it is easy to operate. This photoelectric mechanical finder can measure the X and Y axis coordinates of the workpiece.Features- Color: As shown. - Material: High-speed steel. - Size: 8.60X1.80X1.80cm/3.38X0.71X0.71 inch. - Not easy to wear,higher precision,stable performance,durable. - Suitable for traditional milling machines and comprehensive processing machinery.- Mechanical rotation measurement, no clamping error, repeat measurement accuracy up to 0.005 mm.- The 4 mm probe is designed to measure small apertures and narrow grooves. The lower rotating part adopts anti-magnetic design. - The function of the centering bar: Determine the position of the workpiece/determine the working coordinate system.