1/2" X 3/16" Pilot Hole HSS Taper Shank Counterbore Shopify Collective Part Number DWCF351A

Part Number DWCF351A

Drilling/Exploration

Size 1-7/8"-8

Part Number: EZ-41120

Part Number DWTSQNPT38X2

1/2" X 3/16" Pilot Hole HSS Taper Shank Counterbore Shopify Collective Part Number DWCF351AProduct 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