1-3/4" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number DEWES1-5

Part Number DEWES1-5

Part Number: BIT-D/ACO3/8X37/64

Solid Carbide drills are designed for drilling abrasive materials when drilling accuracy must be maintained and/or when used in high temperature drilling applications

friction ring

Part Number: BIT-DMS73-2120

1-3/4" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Part Number DEWES1-5Product 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