9/16" X 7/16" Pilots for Counterbore Shopify Collective Tap Size 1-1/2"-6

Tap Size 1-1/2"-6

brass and non-metallics

ANSI IMPACT RATING:1

Flute Length 10-3/8"

Part Number: EZ-SK31615

9/16" X 7/16" Pilots for Counterbore Shopify Collective Tap Size 1-1/2"-6Product Description 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