Details
Thunderbolt® Drill Bit Set
- Includes: 1/16"", 5/64"", 3/32, 7/64"", (2) 1/8"", 9/64"", 5/32"", 3/16"", 7/32"", 1/4"", 5/16"", 3/8"", 1/2""
- Designed for extreme durability and long life with a thicker core than standard drill bits
- Parabolic flute form clears chips and debris fast for cooler running
- 3-Flat Secure-Grip shank will not slip in the drill chuck
- Reduced shank diameter designed for use in 3/8″ chucks