Specifically designed to achieve quick, accurate Inside Diameter
measurements of O-Rings and other soft-walled parts.
Resolution is ±.001” (±.03mm) with an accuracy of ±.003” (±.09mm)
on standard range tapes up to 36” (900mm).
Tapes starting between 36”-72" (900-1800mm) and extended range
tapes (tapes with over 12”/300mm of usable range) have a resolution
of .001” (.03mm) with an accuracy of .005” (.14mm).