Milwaukee 48-89-2509 4.2mm Cobalt RED HELIX Twist Drill Bit

Description

Achieve superior performance and long-lasting durability with the MILWAUKEE 4.2MM Cobalt RED HELIX Twist Drill Bit, designed specifically for hard metals. Its Variable Helix, tapering from an aggressive 35° to 15°, ensures fast chip evacuation, reduces heat, and keeps the bit sharp for precise drilling. The QUAD EDGE 135° split point tip delivers accurate starts without walking, while the four cutting edges create smaller chips for quicker removal and extended lifespan. Reinforced with an internal taper web for added strength, this bit resists premature breakage. The cobalt coating maximizes durability, offering up to 10× the lifespan of standard Black Oxide bits, making it the perfect solution for demanding twist-drilling applications.

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 × MILWAUKEE® 4.2MM Cobalt RED HELIX Twist Drill Bit

• User Guide / Instruction Sheet

Warranty Information:

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

Specifications: