1-15/16" X 7/16" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number DWT57195

Part Number DWT57195

Part Number DWTMR2-27X2

Tap Drill Size 1-1/8"

Die Style Hex

Part Number DWDLHW

1-15/16" X 7/16" Pilot Hole HSS Taper Shank Counterbore Quantity:1 Part Number DWT57195Product 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