Mechanical Bore Gauge Range 6 in to 10 in Dial Graduation 0.0005 in Operation Type Mechanical Dimension Type Inch Includes Indicator Yes Maximum Measurement - Inch 10 in Minimum Measurement - Inch 6 in Requires Indicator Yes Accuracy +/-0.0009 in Contact Point Material Ceramic Includes Case Yes Series 2827 Repeatability 0.00015 in