• Blue-Groove point and cutting edge for faster chip removal; double cutting spurs scribe the outside of the hole reducing breakout • Grooved hex shank prevents slipping in drill chuck or bit extension, fits all standard quick change chucks • Includes (1) oneeach: 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1 and storage rack • each: 1/4 5/16 3/8 • Shank Lgth. In=6