15/16" X 1/4" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Hi Viz clothing & Safety Vest Drill America - 1-3/16-27 UNS

Drill America - 1-3/16-27 UNS HSS Bottoming Tap

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Get the Drill America - 2-5/16-12 UNS HSS Bottoming Tap and experience the perfect combination of performance and protection for your professional needs

Sawyer Double Cut Torch Holder

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15/16" X 1/4" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Hi Viz clothing & Safety Vest Drill America - 1-3/16-27 UNSCounterboring 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