Pi Tape® brand 1095 Spring Steel O-Ring 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.

 O-Ring Inside Diameter Price List

 Custom Made O-Ring Inside Diameter Price List


O-Ring Inside Diameter Tapes 1095 Spring Steel Inch Purchase Options


**The standard width for these tapes is 1/4" gage member X 1/2" vernier section.


Part # Size Gage Width Thickness Vernier Section Width Price Link
** RT1 ** 2" - 12" I.D. 0.25" .005" 0.5" 156.00 Go to Product Page
** RT1SP ** 2" - 24" I.D. 0.25" .005" 0.5" 211.00 Go to Product Page
RT2 12" - 24" I.D. 0.375" .010" 0.750" 160.00 Go to Product Page
RT2SP 12" - 36" I.D. 0.375" .010" 0.750" 220.00 Go to Product Page
RT3 24" - 36" I.D. 0.375" .010" 0.750" 173.00 Go to Product Page
RT3SP 24" - 48" I.D. 0.375" .010" 0.750" 229.00 Go to Product Page
RT4 36" - 48" I.D. 0.375" .010" 0.750" 182.00 Go to Product Page
RT5 48" - 60" I.D. 0.375" .010" 0.750" 196.00 Go to Product Page
RT6 60" - 72" I.D. 0.375" .010" 0.750" 211.00 Go to Product Page