1-7/8" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 They are calibrated to be

They are calibrated to be accurate within ±3% for both clockwise and counterclockwise directions and certified to the ISO standard for the full listed range (40 - 300 ft-lb)

Part Number: 62C300HCSAL

Grade: High Speed Steel

Part Number DWDTS2-15/16

Each driver rests in its own slot

1-7/8" X 7/16" Pilot Hole HSS Straight Shank Counterbore Quantity:1 They are calibrated to beProduct 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