High Speed Steel Pilot Bit 1/4" x 3-1/2"

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.

Place your order by 2 PM and it will ship for next business day delivery in most cases. We utilize reliable 24-hour carrier services whenever available to help ensure your order arrives on time.

A minimum order of $99 is required. Orders meeting this minimum qualify for standard shipping rates. Additional charges may apply for deliveries to remote or hard-to-reach areas, as determined by the carrier.

AAA Industrial Supply does not handle product warranties directly. All warranties, if applicable, are provided and administered by the manufacturer.

Warranty terms, coverage, and claims are subject to the manufacturer’s policies. For warranty support, customers must contact the manufacturer directly with proof of purchase.