48-89-2317 Thunderbolt Cobalt Drill Bit, 5/16 In., 135° Split Point

The Milwaukee Thunderbolt Cobalt Drill Bit is engineered for demanding drilling applications in hard metals such as stainless steel and other specialty materials. This 5/16-inch jobber bit combines cobalt construction with a precision-ground 135° split point tip to deliver fast, accurate starts without bit walking.

Cobalt drill bits provide consistent cutting power in hard metal applications, resisting breakage during demanding drilling work. The Thunderbolt's split point tip ensures precision holes while preventing the bit from walking across the work surface. The anti-slip shank keeps the bit secure and in control during demanding jobs, making it an ideal choice for professional users and anyone tackling tough drilling tasks.

Features and Benefits

• 135° Split Point Tip: Delivers precision starts and prevents walking for fast, accurate holes in hard metals.
• Cobalt Material: Engineered for extreme durability and long life in hard metal applications, providing up to 10 times longer life than standard black oxide bits.
• Anti-Slip Shank: Keeps the bit secure and stays in control during demanding drilling jobs.
• Heat Resistant Construction: Variable helix design limits heat buildup to keep the bit sharper longer during continuous use in tough applications.
• Jobber Length Twist Flute: Standard jobber bit design works in all twist drilling applications.

Specifications

• Brand: Milwaukee
• Model: 48-89-2317
• Diameter: 5/16 inch
• Overall Length: 4-1/2 inches
• Type: Jobber Bit, Twist Flute
• Material: Cobalt
• Shank Diameter: 5/16 inch
• Split Point Angle: 135 degrees

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