Hornady Micrometers 0. Measure from 0-1" in 0.0001" incrementsRatchet stop allows uniform pressure to enhance measurement repeatabilitySpindle lock preserves measurement when removing micrometer from work pieceBaked-enamel finish on C-frame provides durabilityPlastic storage case protects micrometer when not in use Specifications for Hornady Micrometer: Manufacturer: Hornady Cartridge Case Material: Plastic Package Contents: Hornady Micrometer Hornady 050072: Micrometers