P.I. 28-200mm Diameter Tape 6570723 Engineers Black Book contains a

Engineers Black Book contains a wealth of up-to-date

0 - VFL-30

Most Non-Ferrous Alloys

The ultimate indicator at very reasonable prices

0air pressure(psi) : 90air inlet (npt) : 1/4"hose size (id) : 3/8"

P.I. 28-200mm Diameter Tape 6570723 Engineers Black Book contains aThe P. I. diameter tape, or periphery tape as it is sometimes called, is used for measuring external or internal diameters large of small with accuracy; eliminating numerous micrometer or caliper readings and then finding the average of these by adding and dividing. Only one reading is necessary for both round and out of round diameters. The large vernier reading is easily read to . 001" or . 01mm and each tape is checked on masters with certified