11/16" X 3/16" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Drill Size: 27/64"

Drill Size: 27/64"

The mini pry bar features an AISI 8650 steel shaft that is made from a strong Ni-Cr-Mo alloy that's hardened to 50–54 HRC

Diameters: 3/8"-16

Size 3/8"-#16

Part Number: M16C50SSSAFLAT45HBO

11/16" X 3/16" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Drill Size: 27/64"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