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and center punches • Individually Heat Treated – Each punch is individually heat treated to harden and strengthen the tip while maintaining the soft temper of the striking end
Part Number: 75C225BFL8P
Tap Size: 7/8"-9
Counterboring is the enlargement of a portion of a hole that has previously been formed
Size 1/2"-#6
51/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore Quantity:1 and center punches • IndividuallyProduct 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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