11/32" X 3/32" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Part Number DWTSR1-51636

Part Number DWTSR1-51636

and cleans burrs and rough edges off cast iron

and square • Clear

1" thick x 20" Long x 4-7/16" Wide Color: Black

Grade: 316 Stainless Steel

11/32" X 3/32" HSS Aircraft Counterbore 1/4" Shank Quantity:1 Part Number DWTSR1-51636Product 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