Starrett® dial Indicator Snap Gage, Series: 1150 Series, 2 to 4 in, +/-0 to 10 dial, Graduations: 0.0001 in, Aluminum Alloy Frame/Hardened Tool Steel Starrett® 1150Z-4 1150 Series dial Indicator Snap Gage, 2 to 4 in Measuring, +/-0 to 10 dial Reading, Graduations 0.0001 in