Unlike many other dial indicators, the one revolution dial indicator literally shows the entire spindle travel or range as one sweep of the hand, eliminating the possibility of reading errors due to miscounting the multiple revolutions. With one-revolution dial indicators, "within tolerance" and "out-of tolerance" can never be misinterpreted. A unique shock-proof mechanism is incorporated, providing improved immunity to shock due to sudden spindle retraction caused by high impact. The crystal is hard coated for durability and scratch resistance. Approximately 40% lighter than the conventional dial indicator. Provided with an improved resistance to shop floor contaminants such as water and dust. Due to the spindle bushing being offset from the stem, spindle movement will not be hindered or jammed when clamping along the stem. A pair of limit hands are provided for quick and easy tolerance judgment (GO/+NG). Specifications include... Range .04" Graduation .0005" Dial Reading 20-0-20 3/8" Stem 4-48 UNF Thread Flat Back Shockproof
