Page 111 - HOLE_MAKING_CATALOG_INCH_2022_P1-P186
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USER GUIDE
                                                                                                                         INDEXABLE DRILLS

             Insert Clamping Instructions



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                        !                    Exiting inclined surface  Regrinding
                   1                         Up to 7°, reduce feed by   Instructions for
                                             50-70% during exiting  IFP Geometry
                                                                   After each grinding
                        !                                          operation, rotate the
                   2                         Entering inclined surface  drill 180° and repeat the
                                             Up to 7°              grinding procedure.
                                                                    1 Primary Clearance

                   3                         Boring
                                             Not possible

                        !                    Cross hole
                   4                         Maximum cross hole     2 Secondary Clearance
                                             diameter must be ¼
                                             of drill diameter
                        !                                                                   20°
                   5                         Stacked plates                                20°
                                             Requires a rigid clamping
                                                                    3 Chisel
                        !                    Chamber
                   6                         Reduce feed by 50-70%,                                         30˚
                                             maximum depth 3XD
                                             Convex                                                       .020 -.022
                        !                    The radius of the penetration
                   7                         surface must be 4X the
                                             CHAM-IQ-DRILL head ØD.   4 Edge Preparation
                                             Short pre-hole is needed                                    A-A
                                                                                                 R=.0030-.0034
                        !                    Concave
                   8                         Spot facing operation is
                                             needed before drilling





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