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The straight-flute design is recommended for most general purpose reaming
Ideal for smoothing surfaces and removing imperfections
Get the Drill America - #12-48 UNS HSS Tap Set and experience the perfect combination of performance and protection for your professional needs
and maintenance
11/16" X 3/16" HSS Aircraft Counterbore 1/4" Shank - High Performance & Durable Cutting Tool | Drill America Hot Deals The straight-flute design is recommendedCounterboring 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
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