High speed steel with M-35, five percent cobalt, for higher heat and abrasion resistance; heavy duty web construction for strength and durability. Split point begins drilling immediately, minimizing bit walk when used in applications such as metal drilling, including heavy duty abrasive alloy metal drilling on hardened steel (heat-treated).
Made of industrial strength cobalt for optimum life and durability with maximum speed in stainless steel and other hard metals. Tip starts on contact and eliminates bit walking.
Milwaukee Thunderbolt Cobalt drill bits are designed for extreme durability and long life in specialty applications. The Thunderbolt web features a thicker core than a standard drill bit to provide ultimate strength and protect against side-load breakage. A specially designed parabolic flute form clears chips and debris fast to keep the bit cool. The 135? split point tip delivers a precision start and prevents walking for fast, accurate holes. Effective for drilling on curved surfaces, Milwaukee Thunderbolt Cobalt bits require less effort to drill through stainless steel, high alloy steel and cast iron. Highly recommended for use with portable drills.
Designed for extreme durability and long life. For specialty drilling in hard metals like stainless steel. Parabolic flute form clears chips and debris fast to keep the bit cool. Ideal for drilling on curved surfaces. 135 degree split point tip starts on contact to keep the bit from walking for fast accurate holes. Thick core provides strength and protects against side load breakage.
Industrial strength Cobalt for optimum life and durability; pilot point tip starts on contact and eliminates bit walking in stainless steel and other hard metal applications.