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Pi Tape® brand 1095 Spring Steel Inside Diameter measuring tapes are suitable for use with all materials and in non-corrosive environments. Each Pi Tape brand precision measuring tape is furnished with a Calibration Report whose measurement results are traceable through NIST to the international system of units (SI).Please click here to view our ISO/IEC 17025:2017 Certificate of Accreditation (pdf). Not all items we calibrate are included in our scope, however the calibration techniques and procedures are all in compliance with ISO/IEC 17025:2017.Specialty sizes, widths and larger tapes are available upon request. Inside Diameter Price List