5-KEY DIGITAL ELECTRonIC INTERCHANGEABLE ANVIL MICROMETER• Painted frame • Friction thimble(ratchet friction thimble available) • Resolution: 0.001mm/0. 00005'' Steel-Plate frame RangeModel No.0-2''/0-50mm600-94212-4''/50-100mm600-94240-4''/0-100mm600-94224-8''/100-200mm600-94250-6''/0-150mm600-94236-12''/150-300mm600-94268-12''/200-300mm600-9427Piped frame RangeModel No.12-16''/300-400mm600-932116-20''/400-500mm600-932420-24''/500-600mm600-932224-28''/600-700mm600-932528-32''/700-800mm600-932332-36''/800-900mm600-932636-40''/900-1000mm600-9327