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      Article no.: 123691

      Solid carbide co-pilot drill plain shank DIN 6535 HA TiAlN 3 mm GARANT

      Brand: GARANT
      Pilot drill required yes, pilot drill
      Through-coolant yes, with 40 bar
      Drill depth up to 20×D
      Tool material Solid carbide
      Point angle 138
      Machining strategy HPC
      Skaft DIN 6535 HA to h5
      No price available

      Solid carbide co-pilot drill plain shank DIN 6535 HA TiAlN 3 mm GARA...

      Subsequent delivery

      Description

      Version:

      Helical fluted, with 4 guide chamfers and internal coolant holes. New generation of high performance co-pilot drills in the HPC range. With 138° point angle and special j6 cutting edge tolerance for optimum generation of a co-pilot hole. High roundness and alignment accuracy of the co-pilot hole.

      Recommendation:

      Maximum drilling depth:
      Flute length (see table) less 1.5×nominal ⌀.

      Note:

      To achieve good process reliability with 40×D and 50×D deep-hole drills it is absolutely essential to drill 6×D pilot hole with a No. 122736 and a 20×D co-pilot hole with a No. 123691 co-pilot drill.
      The generation of a pilot hole improves the process reliability. See also pages 116/117.

      Application Table

      Steel < 500 N/mm²
      P
      105
      Steel < 750 N/mm²
      P
      90
      Steel < 900 N/mm²
      P
      90
      Steel < 1100 N/mm²
      P
      90
      Steel < 1400 N/mm²
      P
      70
      INOX < 900 N/mm²
      M
      50
      INOX > 900 N/mm²
      M
      45
      GG(G)
      K
      95
      Uni
       
      wet maximum