Description

The Milwaukee 3.5mm Cobalt RED HELIX Twist Drill Bits are engineered for exceptional durability and performance when drilling through hard metals. The Variable Helix flute design begins with an aggressive 35° angle that tapers to 15°, allowing faster chip removal while minimizing heat buildup and maintaining a sharper cutting edge.

The QUAD EDGE 135° split point tip provides precise starts without walking, ensuring accurate drilling. Four cutting edges create smaller chips for faster removal and improved efficiency. An enhanced internal tapered web strengthens the bit to resist breakage during demanding applications. Finished with a cobalt coating, these bits deliver up to 10X longer life compared to standard black oxide drill bits.

Key Features:

• Cobalt coating provides up to 10X longer life than black oxide drill bits
• Ideal for twist drilling in hard metals and demanding applications
• Suitable for thick metals, stainless steel, black pipe, and clean wood
• QUAD EDGE tip stays sharper longer for consistent drilling performance
• 135° split point allows precision starts without walking
• Thicker tapered web increases strength and durability
• Variable Helix flute design (35°–15°) improves material extraction
• Rapid chip removal reduces heat buildup and extends bit life
• 3-Flat Secure-Grip shank prevents slipping in the chuck
• Compatible with drills and drivers using 3-Flat Secure Grip shanks

What's Included:

• (2) 48-89-2507 – 3.5mm 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: