- Material and build: ABS plastic, providing a stable and firm construction for reliable use. - Size and portability: compact, portable and small; easy to store and carry, convenient for on-site or workshop use. - Magnetic base for accurate markings: one magnet at the bottom allows direct adsorption on the workpiece to make precise center markings. - Center marking function: designed to determine the exact center position of a plate during processing, useful for grooving, pin joints, and assembly. - Use scenario 1: when grooving or milling plates, use the magnetic base to locate and mark the exact center before cutting. - Use scenario 2: during pin joint construction or assembly, align components by marking the precise center points for accurate alignment. - Use scenario 3: as a portable center-marking aid in the workshop or on-site, ideal for small plates and metal workpieces due to its compact size and magnetic fastening.