Milwaukee 48-89-2321 3/8in Cobalt RED HELIX Twist Drill Bit

Description

Engineered for extreme metal-drilling applications, the Milwaukee 3/8 Inch Cobalt RED HELIX Twist Drill Bit delivers exceptional strength, speed, and longevity. Its advanced variable helix design starts with an aggressive angle and gradually tapers to promote faster chip evacuation, reduce heat buildup, and maintain cutting efficiency. The 135° QUAD EDGE split-point tip allows clean, accurate starts with minimal walking, ensuring precise hole placement every time.

Featuring four cutting edges, this drill bit produces smaller chips for smoother operation, improved heat control, and extended tool life. A reinforced internal web enhances durability, helping prevent breakage under heavy loads. Finished with a high-performance cobalt coating, it offers significantly longer life compared to standard black oxide bits, making it a reliable solution for high-demand twist drilling in hard metals.

Key Features:

• Cobalt coating offers up to 10X longer life versus black oxide drill bits
• Perfect for twist drilling applications in hard metal
• Ideal for thick metals, stainless steel, black pipe, and clean wood
• For use with for 3-Flat SECURE GRIP shank drills and drivers
• QUAD EDGE Tip stays sharper longer
• 135° split point for precision start no walking
• Thicker Tapered Web increases bit strength and durability
• Variable Helix with 35°-15° flute geometry offers faster material extraction
• Rapid Chip Removal limits heat buildup to stay sharper longer
• 3-Flat Secure-Grip keeps the bit fixed within the chuck

What's Included:

• 1 × 3/8 Inch Cobalt RED HELIX Twist Drill Bit

Warranty Information:

• Milwaukee’s warranty and service details can be easily reviewed on the Milwaukee General Warranty Information page. 

Specifications: