Type Bore Gauge Minimum Measurement Decimal Inch 10 Gage Depth Inch 16 Maximum Measurement Decimal Inch 16 Asimeto Certified Bore Gauges measure diameters of small holes by converting the radial displacement to axial displacement of a measuring rod, which is shown on the digital indicator Additional accessories to extend the range of our Bore Gauges are available Furnished With Instruction manual, Calibration certificate, Features Resolution 0000050002mm Dynamic carbide contact point Has analog sweep display to determine minimum reading Wheel guide and inserting anvils