Standard Pack = 1 piece(s). Type = Inside Micrometer ; Range = 1-2 Inch ; Graduation = 0.001 Inch ; Accuracy = 0.0002 Inch ; Satin Chrome Finish On Barrel And Thimble, Measuring Faces Are Fully Hardened, Precision Ground And Microlap Finished To Assure Exceptionally Accurate Measuring, Spindle Threads Are Hardened And Ground, Microfine Graduations (.001 Inch ) On A Satin Chrome Finish Permit Easy Reading, Ratchet Stop Thimble Assures Exact And Repetitive Readings, Easy Zero Adjustment On The Sleeve, Meets Or Exceeds Federal Accuracy Specs, Includes A Setting Ring, Includes A Spanner Wrench And A Case ;