19/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Pipe Equipment where precise and efficient cutting

where precise and efficient cutting is essential

Choose the Drill America - 1/4-18 UNS HSS Taper Tap for unmatched reliability and performance

Adjusting screw is tightened to get the proper size

Secure Connection: The male and female connectors form a strong

Choose the Drill America - 5 x 1 x 1-1/4 90 degree HSS Double Angle Cutter for unmatched reliability and performance

19/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Pipe Equipment where precise and efficient cuttingCounterboring 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