Counterbores

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Capscrew Counterbores
Pilots For Counterbores
Solid Counterbores
Straight Shank Counterbores
Taper Shank Counterbores
  • 5/16 X 1/4 Counterbore Pilot

    Drill America

    5/16 X 1/4 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
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  • 3/8 X 5/32 Counterbore Pilot

    Drill America

    3/8 X 5/32 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
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  • 3/8 X 5/16 Counterbore Pilot

    Drill America

    3/8 X 5/16 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
    Add to Cart The item has been added
  • 3/8 X 3/32 Counterbore Pilot

    Drill America

    3/8 X 3/32 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
    Add to Cart The item has been added
  • 3/8 X 3/16 Counterbore Pilot

    Drill America

    3/8 X 3/16 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
    Add to Cart The item has been added
  • 3/8 X 1/8 Counterbore Pilot

    Drill America

    3/8 X 1/8 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
    Add to Cart The item has been added
  • 3/8 X 1/4 Counterbore Pilot

    Drill America

    3/8 X 1/4 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $5.14
    Add to Cart The item has been added
  • 3/4 X 7/16 Counterbore Pilot

    Drill America

    3/4 X 7/16 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $9.97
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  • 3/4 X 5/16 Counterbore Pilot

    Drill America

    3/4 X 5/16 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $9.97
    Add to Cart The item has been added
  • 3/4 X 3/8 Counterbore Pilot

    Drill America

    3/4 X 3/8 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $9.97
    Add to Cart The item has been added
  • 3/4 X 3/16 Counterbore Pilot

    Drill America

    3/4 X 3/16 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $9.97
    Add to Cart The item has been added
  • 3/4 X 1/4 Counterbore Pilot

    Drill America

    3/4 X 1/4 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $9.97
    Add to Cart The item has been added
  • 3/4 X 1/2 Counterbore Pilot

    Drill America

    3/4 X 1/2 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $9.97
    Add to Cart The item has been added
  • 3/16 X 5/32 Counterbore Pilot

    Drill America

    3/16 X 5/32 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $4.15
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  • 3/16 X 3/32 Counterbore Pilot

    Drill America

    3/16 X 3/32 Counterbore Pilot

    Counterboring Is The Enlargement Of A Portion Of A Hole That Has Previously Been Formed. If The Counterbored Portion Is Shallow (1/8" Or Less), The Operations Is Usually Known As Spot-Facing; For Example, A Flat Seat For A Bolt Head Or Nut. If The Hole...

    $4.15
    Add to Cart The item has been added
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