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Tekton 1/2 inch drive shallow external star (E-Star) sockets are made from 50BV30 steel that's hardened to 40–47 HRC for strength and durability
Part Number: BIT-DWDCOL
dry wall and cast iron
Part Number: BIT-DWDCO25/32
Part Number: BIT-DWDRSD3/8X7/16
1" X 5/16" Pilot Hole HSS Taper Shank Counterbore BoltsandNuts.com Tekton 1/2 inch drive shallowProduct 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
