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                                                      TECHNICAL INFORMATION

3.7. Marking and stamping of high performance machine taps

Example:

             m achine tap according to the standard D IN -371 fo r the left thread M 10 class 6H w ith spiral flutes 45°
             (fo r blind hole) fo r tapping on C N C m achines, TiC N coated, w ith internal cooling.

Marking: given in orders, invoices, specifikations, on the packages

                 DIN-371 C M10 LH 6H L45 HSSE-PM S-NC IK TiCN

standard symbol (see p. 3.2)
         chamfer (see p. 3.3)
                  size of thread
                          thread direction
                                     class of thread (see p. 3.4)
                                              spiral flutes symbol (see p. 3.3)
                                                       material of blade (see p. 1)
                                                                destination (see p. 3.5)
                                                                            internal cooling
                                                                                     coating symbol (see p. 3.5)

Stamping: on the shank of tap

                               class of thread

L.

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