1-15/16" X 7/16" Pilot Hole HSS Taper Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Refurbished Torches & Gauges Visibility: Lime-yellow color with 2”

Visibility: Lime-yellow color with 2” 3M segmented reflective tape

Overall Length: 1-1/4"

Precision Cutting: Engineered for superior cutting accuracy

Ideal for threading a wide variety of ductile materials

1-15/16" X 7/16" Pilot Hole HSS Taper Shank Counterbore - High Performance & Durable Cutting Tool | Drill America Refurbished Torches & Gauges Visibility: Lime-yellow color with 2”Counterboring 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