INTERCHANGEABLE ANVIL OUTSIDE MICROMETERS• Ratchet stop and lock nut. • Laser engraved graduations.• High accuracy interchangeable anvils. • Enamel frame. • Carbide measuring faces.• With standards in a fitted case. • Fine cast frame availableBasic Model Steel-Plate frame Metric Inch RangeGrad.Model No.RangeGrad.Model No.0-50mm0.01mm600-94030-2"0.001"600-941250-100mm0.01mm600-94052-4"0.001"600-941750-150mm0.01mm600-94092-6"0.001"600-94180-150mm0.01mm600-94060-4"0.001"600-9414150-300mm0.01mm600-90004-8"0.001"600-94190-100mm0.01mm600-94040-6"0.001"600-9416100-200mm0.01mm600-94076-12"0.001"600-9300200-300mm0.01mm600-94088-12"0.001"600-9410200-250mm0.01mm600-9021250-300mm0.01mm600-9022Over 12"/300mm Long Range Model Pipe Combined frame Inch Metric RangeGrad.Model No.RangeGrad.Model No.12-16"0.001"600-9301300-400mm0.01mm600-900116-20"0.001"600-9302400-500mm0.01mm600-900220-24"0.001"600-9303500-600mm0.01mm600-900324-28"0.001"600-9304600-700mm0.01mm600-900428-32"0.001"600-9305700-800mm0.01mm600-900532-36"0.001"600-9306800-900mm0.01mm600-900636-40"0.001"600-9307900-1000mm0.01mm600-9007