Mechanical Bore Gauge Range 16 in to 32 in Dial Graduation 0.0005 in Operation Type Mechanical Dimension Type Inch Includes Indicator Yes Maximum Measurement - Inch 32 in Minimum Measurement - Inch 16 in Requires Indicator Yes Accuracy +/-0.001 in Contact Point Material Ceramic Includes Case Yes Series 2828 Repeatability 0.00015 in