Description

The 15-Piece Metric Cobalt RED HELIX™ Twist Drill Bit Set is built for extreme strength and consistent performance when drilling through tough metals. Designed with an advanced Variable Helix geometry, the flute angle transitions from an aggressive 35° to 15°, allowing faster chip evacuation, reduced friction, and controlled heat buildup for longer cutting life.

Each drill bit features a 135° QUAD EDGE™ split point that delivers clean, accurate starts without walking, improving hole accuracy and drilling speed. The four-edge cutting design produces smaller chips for smoother material removal while minimizing heat, helping extend bit durability. A reinforced internal taper web increases core strength to resist breakage under heavy loads.

Finished with a Cobalt coating, these drill bits provide superior wear resistance and last up to 10X longer than standard black oxide bits, making them ideal for demanding, high-performance drilling applications in hard materials.

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:

• (19) COBALT RED HELIX Drill Bits - Metric Sizes: 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, 5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm

Warranty Information:

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

Specifications: