3" Machinists Center Square Set, H & H Industrial Products, Mfr#: 4901-0354

3" Machinists Center Square Set ~ For rapid location of exact center of round, square and octagonal parts. ~ Made from precision ground tool steel. ~ Hardened and tempered blade. ~ To use place the item between the center square and scribe different lines on the workpiece each time its position changes. The center of the scribed lines will give the accurate center of the work piece.