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Enhance your safety and performance with the Drill America - 1/4 X 17/64 82 Degree Piloted Countersink
Why Choose Drill America - 5/16-25/32 90 degree Deburring Tool
Shape: Rectangular
Choose the Drill America - #5-48 UNS HSS Taper Tap for unmatched reliability and performance
3/4" X 1/2" Pilots for Counterbore - High Performance & Durable Cutting Tool | Drill America Burs & Rotary Files Enhance your safety and performanceCounterboring 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