Page 157 - Threading_Handbook
P. 157

SOLIDTHREAD – Designation Code Key

            MTEC          B       10     10     D     24       1.0     ISO        IC908

                          1        2      3      4     5        6        7           8
          MTEC – Mill Thread Endmill Carbide                                                                             THREAD MILLING

       1  Endmill type

               — Without coolant channel

          B  — Central coolant channel
          Z    — Coolant holes in flutes
          Q  — Central coolant hole and reduced neck diameter

          S    — For small internal threads for general use

          SH  — For small internal threads in hard materials
          I    — Single-point design of cutting head


       2  Shank diameter (DCONMS)

                                                       DCONMS


       3  Cutting diameter (Dc)

          DC


       4  No. of flutes

          C  — 3 flutes

          D  — 4 flutes
          E  — 5 flutes

          F  — 6 flutes

       5  Length of thread (APMX)




               APMX

       6  Thread pitch
          Value by number
       •  For metric threading in mm
       •  For inch threading in TPI















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