Milwaukee Thunderbolt pilot bits are designed for extreme durability and long life. The Thunderbolt web features a thicker core than a standard pilot bit; which provides ultimate strength and protects against side-load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. A precision start; 135° split point tip starts on contact to keep the bit from walking for fast; accurate holes. Excellent for drilling on curved surfaces; requires less effort to drill and is highly recommended for use with portable drills.
- Thunderbolt tapered web for added durability.
- 135° split point provides accurate hole placement.
- 3-flat shank won't slip in arbor or chuck.
- Parabolic flute clears chips faster.