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USER GUIDE
       DEEP HOLE DRILLING



            Recommended Machining Conditions







                                                                             Tensile
                                                                             Strength   Hardness    Material
             ISO              Material                    Condition          [N/mm ]      HB         No. (1)
                                                                                  2
                                        < 0.25 %C          Annealed           420         125          1
                                       >= 0.25 %C          Annealed           650         190          2
                  Non-alloy steel and cast steel,   < 0.55 %C  Quenched and tempered  850  250         3
                  free cutting steel
                                       >= 0.55 %C          Annealed           750         220          4
                                                      Quenched and tempered   1000        300          5
                                                           Annealed           600         200          6
             P    Low alloy steel and cast steel                              930         275          7
                  (less than 5% of alloying elements)  Quenched and tempered  1000        300          8

                                                                              1200        350          9
                  High alloyed steel, cast steel,          Annealed           680         200         10
                  and tool steel                      Quenched and tempered   1100        325         11
                  Stainless steel and                   Ferritic/martensitic  680         200         12
                  cast steel                              Martensitic         820         240         13
             M    Stainless steel                          Austenitic         600         180         14
                                                         Ferritic/pearlitic               180         15
                  Grey cast iron (GG)
                                                           Pearlitic                      260         16
                                                            Ferritic
             K    Nodular cast iron (GGG)                  Pearlitic                      160         17
                                                                                                      18
                                                                                          250
                                                            Ferritic                      130         19
                  Malleable cast iron
                                                           Pearlitic                      230         20
                  Aluminum-                               Not cureable                     60         21
                  wrought alloy                             Cured                         100         22
                                        <=12% Si          Not cureable                     75         23
                  Aluminum-cast,                            Cured                          90         24
                  alloyed
             N                           >12% Si        High temperature                  130         25
                                                                                          110
                                                          Free cutting
                                         >1% Pb
                                                                                                      26
                  Copper alloys                             Brass                          90         27
                                                        Electrolitic copper               100         28
                                                      Duroplastics, fiber plastics                    29
                  Non-metallic
                                                          Hard rubber                                 30
                                        Fe based           Annealed                       200         31
                                                            Cured                         280         32
                  High temp. alloys                        Annealed                       250         33
             S                         Ni or Co based       Cured                         350         34

                                                            Cast                          320         35
                                                                             RM 400                   36
                  Titanium Ti alloys
                                                      Alpha+beta alloys cured  RM 1050                37
                                                           Hardened                      55 HRC       38
                  Hardened steel
             H    Chilled cast iron                        Hardened                      60 HRC       39
                                                                                                      40
                                                            Cast
                                                                                          400
                  Cast iron                                Hardened                      55 HRC       41
            (1)  For material groups see, G6-41




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