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DEEP DRILLING - BTA SYSTEM

          DDD-E3
          Deep Double Tube Drills                               DC                 DCONMS
          with External 4 Start Thread
          Connection and Brazed                                     PL
          Tips (18.4-65 dia.)                                           OAL
                                                                  NOM 0 refers to non-coated drill head, NOM 2 refers to coated drill head.
           Designation              DCN (1)    DCX (2)     OAL       DCONMS       PL          Ts (3)     Tsi (4)
           DDD-E3 18.41-20.00 NOM 0  18.41      20.00      50.00      16.00       2.90       TDO-I0     TDI-N0
           DDD-E3 18.41-20.00 NOM 2  18.41      20.00      50.00      16.00       2.90       TDO-I0     TDI-N0
           DDD-E3 20.01-21.80 NOM 0  20.01      21.80      56.00      18.00       3.20       TDO-I1     TDI-N1
           DDD-E3 20.01-21.80 NOM 2  20.01      21.80      56.00      18.00       3.20       TDO-I1     TDI-N1
           DDD-E3 21.81-24.10 NOM 0  21.81      24.10      56.00      19.50       3.20       TDO-I2     TDI-N2
           DDD-E3 21.81-24.10 NOM 2  21.81      24.10      56.00      19.50       3.20       TDO-I2     TDI-N2
           DDD-E3 24.11-26.40 NOM 0  24.11      26.40      57.50      21.00       3.50       TDO-I3     TDI-N3
           DDD-E3 24.11-26.40 NOM 2  24.11      26.40      57.50      21.00       3.50       TDO-I3     TDI-N3
           DDD-E3 26.41-28.70 NOM 0  26.41      28.70      60.50      23.50       3.70       TDO-I4     TDI-N4
           DDD-E3 26.41-28.70 NOM 2  26.41      28.70      60.50      23.50       3.70       TDO-I4     TDI-N4
           DDD-E3 28.71-31.00 NOM 0  28.71      31.00      63.50      25.50       4.00       TDO-I5     TDI-N5
           DDD-E3 28.71-31.00 NOM 2  28.71      31.00      63.50      25.50       4.00       TDO-I5     TDI-N5
           DDD-E3 31.01-33.30 NOM 0  31.01      33.30      63.50      28.00       4.10       TDO-I6     TDI-N6
           DDD-E3 31.01-33.30 NOM 2  31.01      33.30      63.50      28.00       4.10       TDO-I6     TDI-N6
           DDD-E3 33.31-36.20 NOM 0  33.31      36.20      70.50      30.00       4.50       TDO-I7     TDI-N7
           DDD-E3 33.31-36.20 NOM 2  33.31      36.20      70.50      30.00       4.50       TDO-I7     TDI-N7
           DDD-E3 36.21-39.60 NOM 0  36.21      39.60      73.50      33.00       4.80       TDO-I8     TDI-N8
           DDD-E3 36.21-39.60 NOM 2  36.21      39.60      73.50      33.00       4.80       TDO-I8     TDI-N8
           DDD-E3 39.61-43.00 NOM 0  39.61      43.00      73.50      36.00       5.30       TDO-I9     TDI-N9
           DDD-E3 39.61-43.00 NOM 2  39.61      43.00      73.50      36.00       5.30       TDO-I9     TDI-N9
           DDD-E3 43.01-47.00 NOM 0  43.01      47.00      75.00      39.00       5.50       TDO-I10    TDI-N10
           DDD-E3 43.01-47.00 NOM 2  43.01      47.00      75.00      39.00       5.50       TDO-I10    TDI-N10
           DDD-E3 47.01-51.70 NOM 0  47.01      51.70      79.00      43.00       6.10       TDO-I11    TDI-N11
           DDD-E3 47.01-51.70 NOM 2  47.01      51.70      79.00      43.00       6.10       TDO-I11    TDI-N11
           DDD-E3 51.71-56.20 NOM 0  51.71      56.20      82.00      47.00       6.50       TDO-I12    TDI-N12
           DDD-E3 51.71-56.20 NOM 2  51.71      56.20      82.00      47.00       6.50       TDO-I12    TDI-N12
           DDD-E3 56.21-65.00 NOM 0  56.21      65.00      84.00      51.00       6.60       TDO-I13    TDI-N13
           DDD-E3 56.21-65.00 NOM 2  56.21      65.00      84.00      51.00       6.60       TDO-I13    TDI-N13
          •  The drill tip is supplied in a grade that is suitable to machine the material group indicated in the drill head designation: ISO P, K, M, N materials   •  NOM 0 refers to
          non-coated drill head, NOM 2 refers to coated drill head.   •  Ordering example: DDD-E3 47.10 OT-P0   •  For quotation form and user guide, see pages 268-269, 274-280
          (1)  Cutting diameter minimum
          (2)  Cutting diameter maximum
          (3)  Outer tube designation
          (4)  Inner tube designation
          For holders, see pages: TDO-I (D18.41-65.00) (266)
                                        Universal Marking for Deep Drilling Tools
          D-     Tool diameter
          Metric- D18.40
          Inch-  D.724
          d-     Pilot diameter
          Metric- d23.5
          Inch-  d.630
          Tool style
          A-     Single cutting edge
          B-     Multiple cutting edges
          Thread type
          1ST-   Single-start thread single tube
          2ST-   Two-start thread single tube
          4ST-   Four-start thread single tube
          4DT-   Four-start thread double tube
          18-    Tube diameter















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