1-15/16" X 7/16" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DMS73-5015

Part Number: BIT-DMS73-5015

Part Number BRC3/8

Tap Drill Size 1-1/8"

Part Number DWT57195

Part Number DWDLHW

1-15/16" X 7/16" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number: BIT-DMS73-5015Product 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