GrindGuide

Piloted Counterbore

  • Piloted Counterbore

Piloted Counterbore are used for spotfacing and counterboring operations and create flat seating surfaces in existing holes. In spotfacing, the surface around the hole is machined flat, whereas in counterboring, a cylindrical recessed seating surface is produced within the hole. A pilot ensures precise alignment in the pre-drilled hole.