High precision, accurate tool setting and high accuracy of output signal position allows you make your z-axis zero precisely. This probe can automatically trigger Z0 (Z zero) position and set your Z axis height. The bottom is insulated,waterproof and oil resistant,and has strong durability when used. Alligator clips are smooth and flat,clamped on the spindle cutter head,and the clamping force is read well. High-quality materials,stable and durable,long service life. Suitable for processing woodworking, Arylic, Plastic, Aluminum, Iron, Steel,etc.