Drill America

1-1/8 X 5/16 Counterbore Pilot

SKU: DEWPIL1-1/8X5/16
Stock Item: Stock items typically ship within 2-3 business days
UPC: 887861164894
SIZE: 1-1/8
OVERALL LENGTH: 2-1/8
Material: High Speed Steel
Finish: Uncoated (Bright)
$17.87 each
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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 Is Enlarged To A Considerable Depth, It Is Designated As Counterboring

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