1-3/16" X 1/2" Pilots for Counterbore Quantity:1 Part Number DWRRETS1-11/16

Part Number DWRRETS1-11/16

Part Number DWTST2-1/4-12P

Part Number D/AA/CX615/32

Flute Length: 9"

Part Number: M16X100DPAPL

1-3/16" X 1/2" Pilots for Counterbore Quantity:1 Part Number DWRRETS1-11/16Product 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