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Ships within 48 hours · Estimated delivery Oct 23 - Oct 28
Length: 15"
Part Number: BIT-STE5HEX
and 22 adjustment positions
Part Number: 50C500HCSAL
15/16" X 3/16" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Length: 15"Product 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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