37/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Part Number DWDA/CX12T

Part Number DWDA/CX12T

Part Number DEWA4333

This versatile set includes left-handed drill bits and extractor bits

Width: 4-11/16"

37/64" X 3/16" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Part Number DWDA/CX12TProduct 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