Counterbores

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Capscrew Counterbores
Pilots For Counterbores
Solid Counterbores
Straight Shank Counterbores
Taper Shank Counterbores
  • 1/2 X 5/32 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 1/2 X 5/16 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 1/2 X 3/8 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 1/2 X 3/32 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 1/2 X 3/16 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 1/2 X 1/8 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 1/2 X 1/4 Counterbore Pilot

    Drill America

    1/2 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...

    $5.77
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  • 3Flute Capscrew Counterbore

    Drill America

    3Flute Capscrew Counterbore

    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...

    $16.75
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  • 9/32" X3/32 High Speed A/C C'Bore 1/4" Shank

    Drill America

    9/32" X3/32 High Speed A/C C'Bore 1/4" Shank

    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...

    $21.81
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  • 9/16" X1/8 High Speed A/C Countrbore 1/4" Shank

    Drill America

    9/16" X1/8 High Speed A/C Countrbore 1/4" Shank

    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...

    $29.02
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  • 7/8" X3/16 High Speed A/C Countrbore 1/4" Shank

    Drill America

    7/8" X3/16 High Speed A/C Countrbore 1/4" Shank

    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...

    $38.12
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  • 7/16" X1/8 High Speed A/C Countrbore 1/4" Shank

    Drill America

    7/16" X1/8 High Speed A/C Countrbore 1/4" Shank

    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...

    $23.70
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  • 5/8" X1/8 High Speed A/C Counterbore 1/4" Shank

    Drill America

    5/8" X1/8 High Speed A/C Counterbore 1/4" Shank

    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...

    $30.97
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  • 5/16" X3/32 High Speed A/C C'Bore 1/4" Shank

    Drill America

    5/16" X3/32 High Speed A/C C'Bore 1/4" Shank

    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...

    $22.06
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  • 31/32" X3/16 High Speed A/C C'Bore 1/4" Shk

    Drill America

    31/32" X3/16 High Speed A/C C'Bore 1/4" Shk

    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...

    $47.98
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