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25/2 thread chamfer for threading close to a shoulder
Shank Size: 1-1/2"
Overall Length: 1-7/8"
Choose the Drill America - 2-5/8-16 UNS HSS Tap Set for unmatched reliability and performance
expansion shields and toggle bolts
11/16" X 5/16" Pilots for Counterbore - High Performance & Durable Cutting Tool | Drill America Extractors 25/2 thread chamfer for threadingCounterboring 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