Concentricity behavior and setup - Concentricity can vary with each probe installation because the spring clamp in an ER chuck cannot guarantee perfect alignment every time. Even if you set the concentricity to 1 wire, small deviations can occur when the probe is removed and reinstalled. Wiring identification - Wiring for the probe is straightforward: red wire is VCC, black wire is GND, and white wire is IO. Edge finder option - Note: Edge finder is available as an option for the full set. Chuck accuracy and verification - For improved reliability, choose a chuck with AAA accuracy and a concentricity specification of 0.005 or better. Many chucks in China do not meet correct standards, so it is recommended to verify concentricity with a high-precision gauge or a tungsten steel rod. Use scenarios - Scenario 1: Precision CNC milling and probing require repeatable alignment. Use a high-accuracy chuck to minimize runout and improve measurement consistency. - Scenario 2: Upgrading or replacing chucks. Before use, verify concentricity with a precision gauge to ensure the chuck meets required standards. - Scenario 3: Electrical setup and wiring checks. When connecting the probe, use the red VCC, black GND, and white IO identification to confirm correct wiring and operation. Summary - This set helps you understand and manage concentricity behavior, easily identify probe wiring, and choose a chuck with proven accuracy. It also provides practical guidance on verification to ensure reliable performance in demanding workloads.