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Pi Tape® brand Blue Easy to Read O-Ring Inside Diameter tapes are best used for measuring diameters in low-light environments. They are not intended for use with chemicals or in corrosive environments. Tapes are constructed of Blue Easy to Read 1095 Spring Steel. They differ from our standard tapes by featuring a higher contrast facing of white lines and numerals on a dark blue background.
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).
Specialty sizes, widths and larger tapes are available upon request.
2022 Precision Inside Diameter O-Ring Tape Price List
2022 Custom Made Precision Inside Diameter O-Ring Tape Price List
**The standard width for these tapes is 1/4" gage member X 1/2" vernier section.