The Starrett 81 Series, 81-231JN/S Dial Indicator has a shockless, hardened steel gear train and jewel bearings. It is furnished with a lug-on-center back. Antimagnetic and special non-shock mechanisms are options available for all models. 1 11/16" Dial Indicators, .125" Range, Dial Reading 0-50, .0005" Grad, Nonshock
Rugged and simple unit construction with a “universally fitting” designSharp bezel serrations for positive gripUnbreakable crystalHardened stainless steel stemNo-glare satin finish on caseHardened stainless steel rack and spindleMassive bridge for rigid bearing supportHardened stainless steel gears and pinionsNon-reflecting white eggshell finish on dialJewel BearingsIncludes Non-shock mechanismDouble-Row Figure Dials