Page 565 - Yamawa_European_Catalogue_YEU23
P. 565

h stock standard, ) check stock EU, f check stock JP, m stock exhaustion



            CHECK PINS                                                                                            Intro



                                                                                                     WATCH
                                                                                                   THE VIDEO       SP
            Please check the hole size before tapping
            Let's check the hole size before tapping 6H class internal threads of M6×1 by using Check-pin for cutting taps.

                                                                                                                   SL
            ∙ How to use CPC-S (Straight type)


               STEP
                1        Check the minor dia. for M6×1 6H internal thread                                          PO




               STEP                                                                                                ST
                2        Size of the Check-pin for M6×1
                                                d1          d2           Select the two Check-Pins closest to the max and
                          Size  L   ℓ   DS  (Percentage of thread  (Percentage of thread   min size of minor dia of 6H internal thread, referring
                                              engagement)  engagement)
                                                                         to the table on the left.               ROLL
                                              4.917 (100%)  5.026 (90%)
                                                                               4.917(100%)  and    5.134(80%)
                                              4.972 (95%)  5.080 (85%)
                          M6 ×1  73  16.5  6  5.026 (90%)  5.134 (80%)   Depending on the feature of work-piece materials,
                                                                         it is beneficial to tapping to make the hole size
                                              5.080 (85%)  5.188 (75%)
                                                                         before tapping as large as possible and within the
                                              5.134 (80%)  5.242 (70%)   tolerance.                            CARBIDE

               STEP                                                                                              LONG
                3        Insert the Check-pins   and  , selected in step 2.
                          4.917
                                                   5.134
                                                                       GOOD   The hole is finished within minor dia of 6H
                        (100%)                   (80%)                        class internal threads.
                                                                                                                 HAND
                                                                                                                 TAPS
                                                                            ̙
                                                                          ̙          You can easily check hole depth by
                          Check-pin smoothly goes    Check-pin doesn't go      ̙     the three lines marked on the pin.  EG (STI)
                          into the bottom of the hole.  into the hole.


                                                                                                               SPECIAL
                                                                                                              THREADS,
                                                                                                               GAUGES
                                                                                                                YMW

                                                                                                               THREAD
                                                                                                                 MILLS



                                                                                                                  DIES




                                                                                                               CENTER
                                                                                                                DRILLS



                                                                                                               Technical
                                                                                                                   info



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