3" X 1/2" Pilot Hole HSS Taper Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Repair Parts Order now and experience superior

Order now and experience superior pipe alignment capabilities for your welding projects

even in demanding work conditions

Overall Length: 5-1/8"

Thread Size: m39

Shank Size: 29/32"

3" X 1/2" Pilot Hole HSS Taper Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Repair Parts Order now and experience superiorCounterboring 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