P.I. 28-200mm Diameter Tape Tool Tightening Fixtures - Return and lock spring

- Return and lock spring

increasing holding or pull out strength

Can be locked in required position

Cutter d2=15

SODH System

P.I. 28-200mm Diameter Tape Tool Tightening Fixtures - Return and lock springThe 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