3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Part Number DULSF7

Part Number DULSF7

Forstner bits are ideal for tasks requiring precise hole placement

The adapter and reducer work with through-hole

Threaded shank drill bits are type D adapter style

Flute Length 4-9/16"

3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Part Number DULSF7Product 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