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E x ter n al M i c r o meters                                          Hardened steel

                                     Interchangeable Thread Inserts for TESA                                Supplied in sets
                                     Micrometers Series AC                                                 or pairs
                                                                                                            Fixing rod:
                                     With measuring faces specially designed for checking pitch diameters.  3,5 mm dia.,
                                                                                                            15,5 mm long

      For unified inch threads, UN,  For Whitworth threads, 55°          For ISO metric threads, flank
      UNC, UNF....  60° flank angle  flank angle                         angle 60°

      00250015 Set of inserts        00250115 Set of inserts, whitworth  00240015 Set of inserts
                  64 ÷ 2.5 in                    60 ÷ 3 in                              ISO 0.40 ÷ 6.00

      Composition of the sets:       Composition of the sets:            Composition of the sets:
      00250000 AC UN,UNC,UNF         00250100 AC whitworth 60 ÷ 48 in    00240000 ISO 0.4 ÷ 0.50
                                     00250101 AC whitworth 48 ÷ 40 in    00240001 ISO 0.5 ÷ 0.60
                  64 ÷ 42 in         00250102 AC whitworth 40 ÷ 32 in    00240002 ISO 0.6 ÷ 0.80
      00250001 AC UN,UNC,UNF         00250103 AC whitworth 32 ÷ 24 in    00240003 ISO 0.8 ÷ 1.00
                                     00250104 AC whitworth 24 ÷ 18 in    00240004 ISO 1.0 ÷ .25
                  42 ÷ 25 in         00250105 AC whitworth 18 ÷ 14 in    00240005 ISO 1.25 ÷ 1,50
      00250002 AC UN,UNC,UNF         00250106 AC whitworth 14 ÷ 10 in    00240006 ISO 1,5 ÷ 2,00
                                     00250107 AC whitworth 10 ÷ 7 in     00240007 ISO 2,00 ÷ 2,50
                  25 ÷ 17 in         00250108 AC whitworth 7 ÷ 4.5 in    00240008 ISO 2,5 ÷ 3,00
      00250003 AC UN,UNC,UNF         00250109 AC whitworth 4.5 ÷ 3 in    00240009 ISO 3,00 ÷ 4,00
                                                                         00240010 ISO 4,00 ÷ 5,00
                  17 ÷ 10 in                                             00240011 ISO 5,0 ÷ 6,00
      00250004 AC UN,UNC,UNF

                  10 ÷ 6.5 in
      00250005 AC UN,UNC,UNF

                  6.5 ÷ 4 in
      00250006 AC UN,UNC,UNF

                  4 ÷ 2.5 in

                                     Setting Standards for Screw Thread Micrometers                         Hardened steel
                                     - Metric, 60° or 55° flank angle                                      Insulating sleeve
                                                                                                            marked
                                                                                                            with actual size

      60° flank angle, metric        60° flank angle, imperial           55° flank angle, metric

      00240501  Flank angle mm       00250501  Flank angle in            00240601  Flank angle mm
      00240502                       00250502  60° 1                     00240602  55° 25
      00240503  60° 25               00250503  60° 2                     00240603  55° 50
      00240504  60° 50               00250504  60° 3                               55° 75
      00240505  60° 75               00250505  60° 4
                60° 100                        60° 5
                60° 125

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