THIS IS A SET OF EIGHT COBALT S&D DRILLS FEATURING STRAIGHT SHANKS FOR EFFICIENT PERFORMANCE. THE SET INCLUDES A VARIETY OF SIZES: TWO 1-INCH DRILLS, TWO 7/8-INCH DRILLS, TWO 13/16-INCH DRILLS, ONE 5/8-INCH DRILL, AND ONE ADDITIONAL 7/8-INCH DRILL, FOR A TOTAL OF EIGHT PIECES. THESE DRILLS ARE DESIGNED FOR TOOLING AND DRILLING APPLICATIONS.