Thunder Twist® SPLINE BITS
- TriCare® carbide tip design combined with
- additional carbide bullets creates the
- Viper Head® design which guarantees longer life and creates the Fastest Drilling Quad Design in the World!
- ThunderTwist® flute design combined with the copper brazing alloy creates the most reliable drill bit on the market.
- Made with the highest quality American chrome-molybdenum-nickel steel available.
- Vacuum heat treated, and shot-peened for superior strength under the roughest applications.