Description

Boost your drilling efficiency with the 4MM Cobalt RED HELIX Twist Drill Bit, built for exceptional durability and reliable performance when working with hard metals. Designed with an advanced variable helix geometry, featuring a 35° aggressive angle that gradually transitions to 15°, this drill bit promotes faster chip evacuation, reduces heat buildup, and helps maintain cutting sharpness during demanding applications.

The QUAD EDGE 135° split point tip delivers precise hole starts without wandering, allowing for faster and more accurate drilling. With four cutting edges, the bit produces smaller chips that clear away quickly, improving cutting speed while minimizing heat. An enhanced internal taper web strengthens the core of the bit, helping prevent premature breakage during heavy-duty use.

Finished with a durable cobalt coating, this twist drill bit offers superior wear resistance and can last up to 10 times longer than standard black oxide drill bits, making it an excellent choice for professionals handling tough drilling jobs in metalworking and fabrication.

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:

• (2) 48-89-2508 4mm Cobalt RED HELIX Twist Drill Bits

Warranty Information:

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

Specifications: