48-89-2325 Thunderbolt Cobalt Drill Bit, 7/16 In., 5-1/8 In. Oal

The Milwaukee 48-89-2325 Thunderbolt Cobalt Drill Bit is engineered for precision drilling in hard metals including stainless steel and cast iron. This 7/16-inch jobber bit delivers exceptional durability and long life in demanding applications. The cobalt construction provides extreme durability and extended tool life in hard metal applications.

The 135-degree split point tip provides a precision start and prevents walking, delivering fast and accurate holes. Whether you're drilling through tough stainless steel, cast iron, or general metal fabrication work, this bit maintains its sharp edge longer than black oxide alternatives, providing superior performance and up to 10X the life of traditional black oxide drill bits.

Features and Benefits

• Cobalt Construction: Engineered for extreme durability and long life in hard metal applications.
• 135-Degree Split Point Tip: Delivers precision starts and prevents walking for fast, accurate holes.
• Variable Helix Design: The aggressive 35-degree helix angle tapering to 15 degrees provides rapid chip removal and limits heat buildup to keep the bit sharper longer.
• Superior Longevity: Provides up to 10X the life of black oxide drill bits in hard metal applications.
• Versatile Performance: Suitable for all twist drilling applications while excelling in stainless steel and cast iron.

Specifications

• Brand: Milwaukee
• Model: 48-89-2325
• Bit Diameter: 7/16 inch
• Overall Length: 5-1/8 inches
• Shank Diameter: 3/8 inch
• Material: Cobalt
• Flute Type: Twist, jobber bit
• Tip Style: 135-degree split point

Descriptions are AI-generated. For accurate measurements, please call the store to confirm.