Feature: 1. Edge Locating: The edge finder is designed to measuring the edges, holes, studs, angles, corners, etc. with high accuracy. 2. Flexible Uses: Supports online auto measurement as well as working as a offline acoustooptic beam splitter in 5 directions. 3. The Functions: Connect GND and the output signal line. After the host computer obtains the signal, the macro program will realize the functions of automatic centring and recording of coordinates. 4. Good Material: Adopting premium aluminium alloy material, not likely to deform and also has great durability for long use. 5. Easy to Install: Light in weight and compact in size, the installation of this touch probe is very convenient to complete. Specification: Item Type: 3D Edge Finder Parameter Note Material 7075 Aluminium Alloy Anodized Surfaces Edge Finder Outer Diameter (Approx.) 39mm / 1.54in Probe Length (Approx.) 20mm / 0.79in, Standard You can replace it. Clamping Diameter (Approx.) 6mm / 0.24in Grip Length (Approx.)