The Starrett No. 575 Thread Pitch Micrometer 22-30 TPI is a precision tool used for measuring the pitch of threads accurately. Made by the reputable brand Starrett, this micrometer ensures reliable and accurate results for metalworking inspection and measurement tasks. With the ability to measure thread pitches between 22-30 TPI, this tool is essential for manufacturers and machinists looking to maintain strict quality control standards in their work.