Starr Instrument Service is a long established Michigan based calibration lab with decades of experience in the Calibration of testing & measurement instruments for the automotive, medical & aerospace industries.
Starr Chek provides a full line of Rockwell & Brinell hardness test blocks.We have over 20 years of experience providing high quality reliable Hardness testing materials.
Starr is a full service, Accredited Calibration Laboratory. Our Accrediting Body is ANAB Accreditation Services, an ANSI-ASQ National Accreditation Board Company which is a fully recognized accrediting body both domestically and internationally.