1-3/16" X 5/16" Pilot Hole HSS Taper Shank Counterbore BoltsandNuts.com Part Number DMS71-1618

Part Number DMS71-1618

Part Number DWTSR212-1188

Countersink Angle 90°

Tekton T-handle keys have two ends—both a ball-end long arm for spinning out fasteners

Part Number DWTST5/8-28P

1-3/16" X 5/16" Pilot Hole HSS Taper Shank Counterbore BoltsandNuts.com Part Number DMS71-1618Product 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