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Ships within 48 hours · Estimated delivery Sep 4 - Sep 9
Diameters: 5/8"-11
Part Number BRCT364
Part Number: 75C200HCSSS/316
Size 1-11/16"
17/32" X 3/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Diameters: 5/8"-11Product 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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