1-11/16" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number POU1/2NPTW/DRILL
Description
Part Number POU1/2NPTW/DRILL
Size: 3/8"
Internal Diameter: 7/8"-14
Size SA-3NF
Quickly change out and adapt any 1/4 inch hex shank bit with 1/4 inch drive ratchets
1-11/16" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number POU1/2NPTW/DRILLProduct Description 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, on the other hand, the hole is enlarged to a considerable depth, it is designated as counterboring. These counterbores are made of two piece construction, having an integral shank and
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