Crankshaft Distortion Strain Gauge Graduations 0.001 in Dial Gauge Range 5/32 in Dial Reading 0-20-0 Dimension Type Inch Includes 10 Rods Balancing Attachment Sharp Points Maximum Measurement - Inch 18 in Measuring Range 2 3/18 in to 18 in Minimum Measurement - Inch 2 3/8 in Number of Extensions 1 Number of Rods 10 Range per Revolution 0.04 in Reading Balanced Case Type Wooden Includes Case Yes