U.S. Patent No. 9,829,298

Pi Tape Precision Outside Diameter Digital Tapes display inch to metric and metric to inch with the push of a button, also toggles between diameter and circumference for all your measurement needs.

Our Precision Outside Diameter Digital Tapes are available in our 716 Stainless Steel material.

Provides precision diameter and circumference measurements in both inch and metric.

For more information about our Digital Tapes , email Technicalsupport@pitape.com.


  • Tapes have a 2 inch wide Vernier Gage, 1 inch wide Main Body, .020" thick vernier section and .010" tape body thickness.

For Part Numbers DT1SS:
  • Tapes in the range of 2" to 12" (50mm-300mm) O.D. have an accuracy of ± .002" (.06mm) O.D.
  • Tapes in the range of 6" to 37" (152mm-942mm) O.C. have an accuracy of ± .006" (.18mm) O.C.

For Part Numbers: DT2SS - DT7SS:
  • Tapes in the range of 12" to 84" (300-2100mm) O.D. have an accuracy of ± .003" (.09mm) O.D.
  • Tapes in the range of 37" to 263" (942-6596mm) O.C. have an accuracy of ± .009" (.30mm) O.C.

For Part Numbers DT8SS - DT10SS:
  • Tapes in the range of 84" to 120" (2100-3000mm) O.D. have an accuracy of ± .005" (.13mm) O.D.
  • Tapes in the range of 263" to 376" (6596-9424mm) O.C. have an accuracy of ± .015" (.41mm) O.C.

  • Calibration Report traceable to N.I.S.T. is furnished with each new tape at no additional charge
  • Our calibration lab is compliant with ANSI/NCSL Z540-1-1994, ISO/IEC 17025, ISO 10012-1 and 10CFR21


Precision Outside Diameter Digital Tapes 716 Stainless Steel Purchase Options


Part # Size Price Link
DT1SS 2"-12" O.D. / 50.8-304.8mm O.D. 1275 Go to Product Page
DT2SS  12-24" O.D. / 304.8-609.6mm O.D. 1375 Go to Product Page
DT3SS  24-36" O.D. / 609.6-914.4mm O.D. 1535 Go to Product Page
DT4SS 36-48" O.D. / 914.4-1219.2mm O.D. 1695 Go to Product Page
DT5SS  48-60" O.D. / 1219.2-1524mm O.D. 1855 Go to Product Page
DT6SS  60-72" O.D. / 1524-1828.8mm O.D. 2015 Go to Product Page
DT7SS  72-84" O.D. / 1828.8-2133.6mm O.D. 2175 Go to Product Page
DT8SS  84-96" O.D. / 2133.6-2438.4mm O.D. 2335 Go to Product Page
DT9SS  96-108" O.D. / 2438.4-2743.2mm O.D. 2495 Go to Product Page
DT10SS  108-120" O.D. / 2743.2-3048.0mm O.D. 2655 Go to Product Page