Drill America DEWCBRTS2INCH 2″ X 1/2″ Pilot Hole HSS Taper Shank Counterbore, DEWCBRTS2INCH

Drill America DEWCBRTS2INCH 2″ X 1/2″ Pilot Hole HSS Taper Shank Counterbore, DEWCBRTS2INCH

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 counterbore-cutter, and a pilot that is interchangable, which provides flexibility in the use of the tool.

Size: 2, Material: High Speed Steel, Finish: Uncoated (Bright), Overall Length: 8-3/8, Shank Size: 4MT, Shank Type: Taper

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