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USER GUIDE
      INDEXABLE DRILLS  1  A short pre-hole 20 mm long (minimum) with H8 hole tolerance should be prepared   Penetration by drilling



          User Guide



              to guide the long drill (a standard DR drill or an endmill can be used).
                                                                Option No.2
               Option No.1
               1.1
                                                                2.1
                           Penetration with an endmill







               1.2         Enlargement with the endmill         2.2              DRG-MF  boring










               3                                   Deep hole drilling with DR-DH










            2  The DR-DH drill should enter into the pre-hole at slow rotation speed and with coolant supply.
              DR-DH Insert Mounting Configuration vs. Drill Diameter
              DR-DH ø##.# [mm]   Central Insert    Intermediate Insert  Peripheral Insert    Guiding Pad
              25.4-28.5          SOMX 050204…       SOMX 050204…        SOMX 050204…        GPS-06-20-075
              28.6-30.0          SOMX 050204…       SOMX 060304…        SOMX 050204…        GPS-07-20-120
              30.1-33.0          SOMX 060304…       SOMX 060304…        SOMX 060304…        GPS-07-20-120
              33.1-37.5          SOMX 060304…       SOMX 070305…        SOMX 060304…        GPS-08-25-155
              37.6-40.5          SOMX 070305…       SOMX 070305…        SOMX 070305…        GPS-08-25-155
              40.6-42.9          SOMX 070305…       SOMT 09T306…        SOMX 070305…        GPS-08-25-155
              43.0-47.5          SOMT 09T306…       SOMT 09T306…        SOMT 09T306…        GPS-08-25-155
              47.6-51.0          SOMT 100408…       SOMT 100408…        SOMT 100408…        GPS-10-30-200
              51.1-54.0          SOMT 100408…       SOMT 110408…        SOMT 100408…        GPS-10-30-200
              54.1-57.4          SOMT 100408…       SOMT 110408…        SOMT 110408…        GPS-10-30-200
              57.5-61.0          SOMT 110408…       SOMT 110408…        SOMT 110408…        GPS-14-40-250
              61.1-63.0          SOMT 110408…       SOMT 120408…        SOMT 110408…        GPS-14-40-250
              63.1-69.5          SOMT 120408…       SOMT 120408…        SOMT 120408…        GPS-14-40-250

              Spare Parts
                   Insert         Screw          Key            Guiding Pad     Clamping Screw     Key
               SOMX 050204...  SR 34-533/L      T-6/51          GPS-06-20-075   SR 11201753-1      T-7
               SOMX 060304...  SR 34-508/L      T-7/51          GPS-06-20-085   SR 11201753-1      T-7
               SOMX 070305...   SR 14-560       T-8/51          GPS-06-20-100   SR 11201753-1      T-7
               SOMT 09T306...   SR 34-506       T-9/51          GPS-14-40-250   SR 11201752-2     T-15
               SOMT 100408...   SR 14-571       T-10/51         GPS-07-20-120   SR 11201753-4      T-9
               SOMT 110408...  SR 14-544/S      T-15/51         GPS-10-30-200   SR 11201753-6     T-15
               SOMT 120408...  SR 14-544/S      T-15/51










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