THE GENTLEMAN I PURCHASED IT FROM SAID HE JAD OPENED UP THE TOOL BUT NEVER USED IT. I CANT FIND ANYTHING THAT POINTS TO IT BEING USED SO ITS LISTED AS OPEN BOX. THANK YOU. The H.P.C. Inc. Key Micrometer is a high-quality precision tool for measuring up to 1 inch. This micrometer has been cleaned and tested to ensure optimal performance and accuracy. The design of the micrometer allows for easy and precise measurements, making it a valuable asset for metalworking inspection and measurement tasks. The brand H.P.C. Inc. guarantees reliability and durability in this essential piece of equipment for professionals in the KEYING, CNC, metalworking, and manufacturing industries.