1" X 7/16" Pilots for Counterbore Quantity:1 Drill Size: 15/64"

Drill Size: 15/64"

Part Number DWT54926

chrome-plated finish is easy to clean and highly resistant to corrosion • Beveled drive end helps guide extension smoothly onto drive tool • Radiused corners inside drive avoid stress concentrations that can cause cracking

Overall Length: 3-13/16"

Part Number DWTSMR212-38X3

1" X 7/16" Pilots for Counterbore Quantity:1 Drill Size: 15/64"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