Mechanical Bore Gauge Range 0.7 in to 1.5 in Dial Graduation 0.0005 in Operation Type Mechanical Contact Style Anvil Dimension Type Inch Maximum Measurement - Inch 1.5 in Minimum Measurement - Inch 0.7 in Accuracy +/-0.00025 in Case Type Case Contact Point Material Carbide Includes Case Yes Series 3089 Repeatability 0.0005 in Resolution 0.001 in