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  • #40 x 1/4"-28 Cobalt Threaded Shank Adapter Drill DR66740
  • #40 x 1/4"-28 Cobalt Threaded Shank Adapter Drill DR66740
  • #40 x 1/4"-28 Cobalt Threaded Shank Adapter Drill DR66740
  • #40 x 1/4"-28 Cobalt Threaded Shank Adapter Drill DR66740

    • #40 x 1/4"-28 Cobalt Threaded Shank Adapter Drill DR66740

    Clarkson-Osborn

    $7.42
    (No reviews yet) Write a Review
    SKU:
    CLK DR66740
    Weight:
    0.00 LBS
    Diameter:
    #40
    Flute length:
    5/16"
    Overall length:
    1/2"
    Package quantity/sold as each:
    1
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    Product Description

  • M42 (8% Cobalt) - cobalt drills offer increased hardness,
  • 1/4"-28 threaded shank provides a secure fit in the tool holder
  • Toughness and better wear resistance compared to regular HSS
  • Black oxide finish for increased wear resistance and added lubricity
  • 135° Degree split point for fast penetration and accurate starting (self-centering) which eliminates "walking" and reduces the thrust force needed
  • Used in portable angle drilling tools for drilling harder, tough high tensile materials in confined areas
  • When drilling low tensile strength materials, these drills will have significantly greater tool life vs. standard HSS

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    Diameter #40
    Flute length 5/16"
    Overall length 1/2"
    Package quantity/sold as each 1

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