15pc Thunderbolt Black Oxide Drill Bit Set

Thunderbolt Web Parabolic Flute 135 Degree Split Point Precision Start No Walking Secure Grip Shank Reduces Bit Slipping in Chuck Includes: 1/16" 5/64" 3/32" 7/64" 1/8" 9/64" 5/32" 11/64" 3/16" 13/64" 7/32" 1/4" 9/32" 5/16" 3/8"