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Drill America - 15/16-30 UNS HSS Bottoming Tap
general purpose drill bit ideal for production
Drill America - 1/4-56 UNS HSS Bottoming Tap
Size: 3-3/16"
offering exceptional protection against sparks
1/4" HSS Solid Counterbore - High Performance & Durable Cutting Tool | Drill America Hot Deals Drill America - 15/16-30 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
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US$ 1780.07