7/16" X 1/8" HSS Aircraft Counterbore 1/4" Shank - High Performance & Durable Cutting Tool | Drill America Hole saws Size: 15/16"-27

Size: 15/16"-27

Available Dimensions: 1" and 1 1/4"

hydrating beverage

making them an essential addition to any machining setup

deep flutes

7/16" X 1/8" HSS Aircraft Counterbore 1/4" Shank - High Performance & Durable Cutting Tool | Drill America Hole saws Size: 15/16"-27Counterboring 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