Baker Lever Type Dial Gauges has Following Features:Easy to read Larger dial diameter of 38mm.Metric gauges conform to IS 11498-1985 and for the European market to DIN 2270-1985. Inch gauges conform to ASME B89.1.10M-2001. Available with or without accessories like 1 mm carbide ball stylus (0.04 inch for inch series) height gauge adaptor, universal clamp and 4 mm dovetail spigot assembly (0.635 inch for inch series).Baker Lever Type Dial Gauge, Model no. 306, Range: 0.8mm, Bezel Size: 38mm, Resolution:0.01mm, Dial Reading: 0-40-0, Units/Pkg: 1, Warranty: As per manufacturer's warranty policy.