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Drill America - 2-1/4-8 UNS HSS Taper Tap
Enhance your safety and performance with the Drill America - 1-1/8-18 UNS HSS Taper Tap
Enhance your safety and performance with the Drill America - 2-1/83/8 X 3/4 HSS Arbor Type Keyeat Woodruff Cutter
Why Choose Drill America - 5/16-64 UNS HSS Tap Set
precise holes
1/4" X 3/32" Pilot Hole HSS Taper Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Welding Supplies Drill America - 2-1/4-8 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