1-1/8" X 1/2" Pilots for Counterbore Quantity:1 Height: 62-7/8"

Height: 62-7/8"

Grade: Grade 5

Part Number: M12C30ASBA2

Zinc Yellow Class 10 Flat Washers

Part Number DWTH2-3410

1-1/8" X 1/2" Pilots for Counterbore Quantity:1 Height: 62-7/8"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