Drill America DEWCBR Series Qualtech High-Speed Steel Counterbore, 1/2\ Shank Diameter, 3/16\ Pilot, 5-1/8\ Length, 5/8\ Size (Pack of 1)
- High-speed steel tools are good for most general purpose applications, offering a combination of hardness and toughness for wear resistance.
- Round shanks allow use with a wide variety of toolholding systems.
- Counterboring is the enlargement of a portion of a hole that has previously been formed.
- The counterbor is a two-piece construction, having an integral shank and counterbore-cutter, and a pilot that is interchangeable, which provides flexibility in the use of the tool.