1-9/16" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Shape Three Square

Shape Three Square

Part Number DWRRTPH10

Class 10 Stainless Steel Hex Nuts Zinc

heated and stainless steels

Part Number: M4C08ASBA2

1-9/16" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 Shape Three SquareProduct 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