3/4" X 1/4" Pilots for Counterbore Quantity:1 25 Diameter is Fine Thread)

25 Diameter is Fine Thread)

and 10 inch extensions add length to access hard-to-reach fasteners • Spring-loaded detent ball securely latches onto sockets

Part Number DWDLH25/64

9 Hex Head Cap Screws DIN 931 / 933 Zinc Clear

Part Number DWTST3-1/4-8P

3/4" X 1/4" Pilots for Counterbore Quantity:1 25 Diameter is Fine Thread)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