1/4" X 3/32" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Part Number: 100C550SHCSABO/USA

Part Number: 100C550SHCSABO/USA

Number of Compartments: 104

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Part Number: M16C80HCSSS/A4

Part Number: 50X350DPPOAPL

1/4" X 3/32" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Part Number: 100C550SHCSABO/USAProduct 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