Mitutoyo 2900S-73 Dial Indicator, #4-48 UNF Thread, 9.525mm Stem Dia., One Revolution Type, Lug Back, Yellow Dial, 40-0-40 Reading, 57mm Dial Dia., 0-0.08mm Range, 0.001mm Graduation, +/-0.003mm Accuracy

An unique shock-proof mechanism is incorporated, providing improved immunity to shock due to sudden spindle retraction caused by high impact. 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). The crystal is hard coated for durability and scratch resistance.