Brown & Sharpe TESA 74.111372 Interapid 312 Dial Test Indicator, Horizontal Type, M1.7x4 Thread, 0.157" Stem Dia., White Dial, 0-4-0 Reading, 1.5" Dial Dia., 0-0.016" Range, 0.0001" Graduation, +/-0.000.157" Accuracy