Mitutoyo 3-Wire Unit Series 313

Product DescrptionsAttached to the measuring faces of both the spindle and anvil of the micrometer, enables measurement of pitch diameter of screw threads.Specification ( Model Unit : SET)Order No.SETWire dia. (mm)Support spindle dia. (mm)313-101180.170 - 3.2006.35 Specification ( Model Unit : Inch/Metric)Order No.(One pair)(Support spindle dia.)Wire dia. (mm)Accuracy of wire diameter (mm)Pitch6.35 mm (0.25 in)Metric thread (mm)Unified thread (threads per inch)Whitworth thread (threads per inch)9521310.170±0.0020.2, 0.25, 0.380-9521320.195±0.0020.3572-9521330.220±0.0020.464-9521340.250±0.0020.4556609521350.290±0.0020.548489521360.335±0.0020.644, 40409521370.390±0.0020.736369521380.455±0.0020.75,0.832329521390.530±0.0020.92828, 269521400.620±0.0021.02424,229521410.725±0.0021.252020,19,189521420.895±0.0021.518, 16169521431.100±0.0021.75, 2.014,13,1214,129521441.350±0.0022.511,1011,109521451.650±0.0023.09,89,89521462.050±0.0023.5779521472.500±0.0024,4.5669521483.200±0.0025,5.5,65,4.55,4.5 Measurement example