7/32" X 3/32" Pilot Hole HSS Straight Shank Counterbore Quantity:1 8x12 Phillips Round Fillister Head

8x12 Phillips Round Fillister Head Machine Off Road Moto Hardware Zinc - 4PCS

Part Number DWC5-530-366

Part Number: 62C500FSHCSABO

Part Number DWTSH2-12

Part Number D/ACT3

7/32" X 3/32" Pilot Hole HSS Straight Shank Counterbore Quantity:1 8x12 Phillips Round Fillister HeadProduct 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