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15/64" X 3/32" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill AmericaCounterboring 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

Why Choose Drill America - 1-1/16-12 UNS HSS Bottoming Tap

Pilot Dia: 5/32"

A long starting taper is ground into the reamer for easy entry and accurate alignment

These files are for general use by machinists for filing internal angles more than the right angle

and Fillet Tester with Electric Pump

Why Choose Drill America - 4-8 UNS HSS Taper Tap

Suitable for creating custom drills

and comfort

Secure Fit: Engineered to fit CGA 540 oxygen inlet connections perfectly

drill faster

Overall Length: 3-1/8"

Scent: Citrus