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      CTR™ • Counterbore
      CTR™ • Counterbore
      CTR™ • Counterbore
      CTR™ • Counterbore

      S2S Whistle Notch WN Shank • Metric

      CTR™ • Counterbore

      Metric
      Inch
      SAP Material Number 1191076
      ISO Catalog Number CBTF260R2WD20N2M
      ANSI Catalog Number CBTF260R2WD20N2M
      [D1] Drill Diameter M 26.1650
      [D1] Drill Diameter M 1.030
      Drill Diameter Tol. Min -0.120000
      Drill Diameter Tol. Min -0.004
      Drill Diameter Tol. Max 0.120000
      Drill Diameter Tol. Max .0047
      [D] Adapter / Shank / Bore Diameter 20.0
      [D] Adapter / Shank / Bore Diameter .7874
      Pre Machined Hole Diameter [D6] 13.0000
      Pre Machined Hole Diameter [D6] .5118
      [L] Overall Length 96.0000
      [L] Overall Length 3.779
      [L2] Head Length 46.0000
      [L2] Head Length 1.811
      [L4] Maximum Drilling Depth 23.5000
      [L4] Maximum Drilling Depth .9252
      Gage Insert SPHX090304R..
      Number of Insert Cutting Diameter 1 2
      See all Product Variants

      Uses and application

      • Counter BoringCounter Boring
      • Shank - Cylindrical Whistle Notch™Shank - Cylindrical Whistle Notch™
      • Coolant - Through CoolantCoolant - Through Coolant
      • Flute Configuration: 2Flute Configuration: 2
      • Flute Configuration: 3Flute Configuration: 3

      Workpiece Materials

      P Steel
      M Stainless Steel
      K Cast Iron
      N Non-Ferrous
      S High-Temp Alloys
      H Hardened Materials

      Features and benefits

      • CTR Counterboring Tools are designed for high-production screw head counterbores and similar counterboring operations.

      • Extremely unequal insert positioning and flutes.

      • S2 S inserts reduce additional drill operations to achieve a precise 90° bottom.

      • Counterboring tool shipped with insert screws and Torx wrench.

      Machine Side

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      Workpiece Side

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      Spare Parts for S2S Whistle Notch WN Shank • Metric

      Spare Part
        INSERT SCR M3-0.5 x 7.2 T9
        INSERT SCR M3-0.5 x 7.2 T9
        Spare Part
          Spare Part 170.024
          Spare Part 170.024
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