3/8 in. Cobalt Twist Drill Bit for Hard Metals

Milwaukee’s RED HELIX cobalt twist drill bit is engineered for extreme durability and fast drilling in hard metals. A QuadEdge tip and variable helix design improve chip removal and reduce heat, while a thicker tapered web boosts strength for longer life versus black oxide bits.

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Key Features:

• Durable Cobalt Construction: Up to 15x life vs. black oxide bits in hard metals
• Precision Starts: 135° split point reduces walking for cleaner holes
• Variable Helix Flutes: 35°–15° geometry accelerates material extraction
• QuadEdge Tip: Stays sharper longer and drills faster with less heat
• Secure 3-Flat Shank: Prevents bit slipping in the chuck for better control

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Specifications Table:

Specification	Details
Bit Material	Cobalt
Drill Bit Type	Twist
Drill Bit Type(s) Included	Twist
Individual/Set	Individual
Number of Pieces	1
Pack Size	1
Material Application	Aluminum, Cast Iron, Duct/Sheet Metal, Stainless Steel, Steel
Tools Product Type	Power Tool
Shank Style	3-Flat
Shank Diameter	3/8 in
Bit Diameter	3/8 in
Bit Length (in.)	5
Item Weight	0.1 lb
Drilling Depth (in)	3.74
Returnable	180-Day
Features	QuadEdge tip, Variable Helix design, Enhanced tapered web, 135° split point

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Frequently Asked Questions (FAQ):

Q: What materials can this bit drill?
A: Designed for aluminum, cast iron, duct/sheet metal, stainless steel, steel, PVC, wood, and more.

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Q: What is the shank style?
A: 3-Flat Secure-Grip shank to reduce slipping in the chuck.

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Q: What are the dimensions?
A: Bit diameter is 3/8 in.; overall length is 5 in.; shank diameter is 3/8 in.

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Q: Is this sold as a single bit or a set?
A: Individual bit (pack size: 1).

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Q: Will it work with standard drill/drivers?
A: Yes, it’s compatible with all drill/drivers.

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Industrial Precision, Elevated

This sleek cobalt bit brings a refined, hardworking edge to workshop essentials, turning metalwork into a crisp, confident act. The variable helix fluting is a standout, channeling chips away with sculptural ease for smoother, faster holes. Pair it with a brushed-steel drill/driver and a clean pegboard wall to create a purposeful, modern workspace. It’s a small luxury of performance—precise, enduring, and indispensable.

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Upgrade your drill kit with Milwaukee’s RED HELIX cobalt bit for faster, longer-lasting performance in hard metals.

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