Drill America DEWCBR41/64 41/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore, DEWCBR41/64 Shop by Category > Measurement>Misc Gauges/Sets Container made of UHDP (ultra

Container made of UHDP (ultra high density polyethylene)

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Drill America DEWCBR41/64 41/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore, DEWCBR41/64 Shop by Category > Measurement>Misc Gauges/Sets Container made of UHDP (ultraDrill America DEWCBR41 64 41 64" X 3 16" Pilot Hole HSS Straight Shank Counterbore, DEWCBR41 64 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