Brown & Sharpe-TESA Brand New.06" x .0005" (Graduation) Interapid 312b-1 Horizontal Model Dial Test Indicator (Lever-Type), Very large measuring span Ideal for inspecting all significant size variations, e.g.on the surface plate Measure positional, form and shape errors FEATURES: For measurement at 12°. With revolution counter. Inclined, easy-to-read dial. One piece, solid case. High rigidity. Very high sensitivity, very light measuring pressure. Jeweled mechanism fitted with ball-bearings. Fully reversible, swiveling through 210° without reversing lever. Hard steel or tungsten carbide contact points. Variety of mounting positions