7/16" X 5/32" Pilot Hole HSS Taper Shank Counterbore Shopify Collective ship and engine builders

ship and engine builders

Part Number: 56C400HCSL9Y

Part Number DWTSMR212-30X2

and detent pin anvils • Corrosion-Resistant Coating – All items in this set have a corrosion-resistant manganese phosphate coating

Part Number: BIT-DULSF5

7/16" X 5/32" Pilot Hole HSS Taper Shank Counterbore Shopify Collective ship and engine buildersProduct 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