5/16" 11/32" Continuous Pilot Capscrew Counterbore Quantity:1 Hand Tap Size Range 1-3/4"

Hand Tap Size Range 1-3/4" - 4"

They feature a left hand helix for screw machine applications where spindles rotate counter-clockwise

Part Number: assortment-kit-367Dome Head Blind Rivets Steel/Steel Mandrel

Part Number: BIT-DEWSFC1-1/2-82

Part Number CTH1125

5/16" 11/32" Continuous Pilot Capscrew Counterbore Quantity:1 Hand Tap Size Range 1-3/4"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