4 Counterbore Pilot

$5 77 each

Stock Item:: Stock items typically ship within 2-3 business days
UPC:: 887861164221
SKU:: DEWPIL7/16X1/4
SIZE:: 7/16
OVERALL LENGTH:: 1-7/8
Material:: High Speed Steel
Finish:: Uncoated (Bright)

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