49/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Sets & kits Enhance your safety and performance

Enhance your safety and performance with the Drill America - 1-48 UNS HSS Tap Set

Carbide tips brazed to tough steel bodies and are larger than the nominal drill size to provide clearance for installation of anchor screws

ensuring optimal protection and visibility

electrical

Size: 3/4"-16

49/64" X 1/4" Pilot Hole HSS Straight Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Sets & kits 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