Fowler External Caliper Type Gage Fowler’s direct reading electronic caliper type gage for quick, accurate measurements of external dimensions and thicknesses. Features Include... Easy to hold Rugged housing Large, LCD Display Preset Capability Direct Inch / mm conversion Absolute / incremental measurements Includes Case Specifications include... 0-0.790" / 20mm Measuring Range 0002" / 0.005mm Resolution +0008" / + 0.02mm Accuracy