US$ 16.44
Part Number: 50X500DPAPL
Length:4-1/2"
Part Number: M20X80DPOSAPL
Part Number DWRRTPS7/0
27/32" X 1/4" Pilot Hole HSS Taper Shank Counterbore BoltsandNuts.com Part Number: 50X500DPAPLProduct 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
US$ 16.44
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