Center Tester

Center testers are a type of machine tool accessory used in metalworking machinery. They are used to accurately determine the center of a workpiece or a machine tool spindle. Center testers typically consist of a precision ground shaft with a conical tip at one end and a handle at the other end.

To use a center tester, the conical tip is placed against the workpiece or machine tool spindle, and the handle is rotated. As the handle is turned, the conical tip will move in and out, indicating the center position. This allows the operator to align the workpiece or machine tool spindle accurately.

Center testers are commonly used in machining operations such as turning, milling, and drilling. They are essential tools for ensuring precise alignment and accurate machining results.