4" Hole Saw Pilot Bit

Milwaukee High Speed Steel 4 in. L X 1/4 in. D Hole Saw Pilot Bit

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 deg. 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.
High-speed steel offers a good balance of hardness, durability, and affordability
Tapered design allows for faster chip removal and helps to reduce clogging during drilling
Prevents from wandering as it starts to penetrate the material, resulting in a precise hole
Ideal for various drilling tasks in wood and other soft materials