Check the listing for details. UNION HS-M3 1532R. Condition: New – Open box. Listed at 53.00 USD. The UNION HS-M3 1532R is a magnetic holder used for metalworking inspection and measurement. Its sturdy construction and reliable magnetism make it a valuable tool for securely holding metal samples or pieces during examination or testing. This product is designed to provide stability and convenience for workers in the CNC, metalworking, and manufacturing industries, ensuring accuracy and precision in their tasks.