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designed as ultimate access tools that can fit into tight spaces where others can't
Part Number PORTAB1014
Part Number DEWSFC1-1/4-120
Gold and black surface treated for use in stainless steel and other hard metal drilling
3/4" X 1/4" Pilot Hole HSS Taper Shank Counterbore BoltsandNuts.com designed as ultimate access toolsProduct 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
