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USER GUIDE
      DEEP DRILLING - BTA SYSTEM



          Grade of Brazed Heads

              DSD-E0                                            DSD-E2
                           DSD-E0 (MBU style) STS                          DSD-E2 (BTU 2tip style) STS






              Ø8 -14.79 mm (Ø.315– .582”)                       Ø12.60 ~ 20.00 mm (Ø.496” ~ .787”)
                ISO    Wear resistance    Shock resistance       ISO     Wear resistance   Shock resistance
                               10  20  30  40                                    10  20  30  40


                P                                                 P
                                 PZ                                                   PZT




                M                                                 M
                                   KZ                                                     PZN


                K                                                 K

                N                                                 N

                S                  KZ                             S                 PZT

              DSD-E1                                            DSD-E3
                           DSD-E1 (UTE style) STS                 DSD-E3 (BTU style) STS  DDD-E3 (ETU style) STS






              Ø12.60 ~ 20.00 mm (Ø.496” ~ .787”)                Ø15.60 ~ 65.00mm     Ø18.40 ~ 65.00mm
                                                                (Ø.615” ~ 2.559”)    (Ø.725” ~ 2.559”)
                ISO    Wear resistance    Shock resistance
                                                                 ISO     Wear resistance   Shock resistance
                               10  20  30  40
                                                                                 10  20  30  40

                P                                                                      *
                                   PZ                             P
                                                                                 PZT PZX2T



                M                                                                        *
                                                                  M                    PZX2T
                                   KZ

                K                                                                         PZN
                                                                  K
                N                  KZ
                                                                  N                  *

                                                                                    KZK
                S                  KZK                            S
                                                                * indicates the first recommendation










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