3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Flute Length 4-9/16"
Description
Flute Length 4-9/16"
Size 7/8"-90
Threaded shank drill bits are type D adapter style
Forstner bits are ideal for tasks requiring precise hole placement
3/16" X 3/32" Pilot Hole HSS Straight Shank Counterbore Shopify Collective Flute Length 4-9/16"Product 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
Exchange/Return Notes
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