1-1/16" X 5/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective 29 Piece Set comes in

29 Piece Set comes in a round

2035 PCS - Zinc Clear Finish

creating a solid connection that is stronger and straighter than simply pressing the shank into a premade handl • Phillips

They are made from M42 8% cobalt and are manufactured to NAS 965 Type "D" specifications

Part Number: BIT-DWDRSD3/8X5/8

1-1/16" X 5/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective 29 Piece Set comes inProduct 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