Product Details
Thunderbolt black oxide jobber length drill bits are engineered for extreme durability and long life, featuring a Thunderbolt web that offers a thicker core than standard drill bits, providing enhanced strength and protection against side-load breakage. The drill bits incorporate a specially designed parabolic flute form that effectively clears chips and debris, ensuring the bit remains cool during use. Each bit is equipped with a precision start, 135-degree split point tip that initiates on contact, preventing the bit from walking and enabling fast, accurate hole drilling. These bits are particularly effective for drilling on curved surfaces, requiring less effort and making them highly recommended for use with portable drills. The black oxide finish adds lubricity and serves as an anti-corrosive layer, making these drill bits suitable for general purpose drilling in both wood and metal applications.
