Page 220 - ISCAR(HOLE_MAKING_CATALOG_65)
P. 220

USER GUIDE
      DEEP DRILLING - BTA SYSTEM



          Guide pads

              Guide pads are subject to wear, like inserts.     Please replace the filler with
            •  Each guide pad can be used on two sides. When    the top guide pad when:
              the first corner wears out 70% of the width, reverse   •  High hole accuracy is required
              the guide pad to use the second corner.         •  L/D (hole length-to-diameter) ratio is greater than 50:1
            •  Replace with a new guide pad when              •  Drilling a workpiece which has a tail stock hole
              the second corner wears out.                    •  The DOC required is greater than the range of the
                                                                peripheral insert for counterboring. *See chart below.
                                                                                     Guide pad
                      IC950                                        Filler                       Protector
                Wear resistance  IC908                                                            Top guide





                                          IC928


                                         Drill Diameter D (mm)
                For higher wear resistance
               •  High wear-resistant grade
                                                                *Maximum DOC of peripheral insert
                First recommendation
               •  Suitable for various workpiece materials
               •  Long tool life due to unique substrate and coating  Cartridge   DOC (mm)      Guide pad
                                                                 CAOD-0845          6.4      GPS-08.../GPS-10...
                For higher fracture resistance                   CAOD-103           7.2      GPS-10.../GPS-14...
               •  High fracture-resistant grade
                                                                 CAOD-142           10.4     GPS-14.../GPS-18...
                                                                 CAOD-170           12.0     GPS-18...
                                                                For diameter less than 92 mm, the drill head is
                                         st
                               Wear on the 1  corner            semi-standard using the top guide pad.
                                                                Please contact your dealer for further information.
                                                                                  Guide Pad
                 100%  70%                                                         Screw           Key




                                                                    GPS-05        SR 34-508       T-7/5
                                                                    GPS-06        SR 34-508       T-7/5
                                                                    GPS-07      SR 11201753-4     T-9/5
                                Reverse and use the 2  corner       GPS-08       SR 34-506-C      T-9/5
                                               nd
                                                                    GPS-10       SR 14-571/S      T-15/5
                                                                    GPS-12       SR 14-571/S      T-15/5
                                                                    GPS-14       SR 14-571/S      T-15/5
                                                                    GPS-18       SR 14-571/S      T-15/5


























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