Digital Outside Micrometer Range 17.710 in to 18.700 in 450 to 475 mm Resolution 0.0001 in/0.001 mm IP Rating IP67 SPC Output Yes Thimble Type Friction Anvil Material Carbide Includes Output Capability for Data Transmission Lock Nut Type Lever Maximum Measurement - Inch 18.700 in Maximum Measurement - mm 475 mm Minimum Measurement - Inch 17.710 in Minimum Measurement - mm 450 mm Spindle Material Carbide