48-89-2315 Red Helix Cobalt Drill Bit, 9/32 In., 4-5/16 In.

The Milwaukee RED HELIX 9/32 In. Cobalt Drill Bit is engineered for extreme durability and long life in hard metal applications. Cobalt steel construction delivers exceptional wear resistance, making this bit ideal for demanding drilling tasks in stainless steel, high-alloy steel, cast iron, and other tough materials. Whether you're a professional metalworker or a serious DIY enthusiast, this drill bit tackles applications where standard bits fall short.

The RED HELIX design combines advanced engineering with proven performance. Its variable helix geometry and precision-engineered tip work together to reduce startup torque, enhance hole quality, and promote rapid chip removal. By minimizing heat buildup and keeping the bit sharper longer, this drill bit delivers superior results and extends tool life compared to black oxide alternatives.

Features and Benefits

• Cobalt Steel Construction: Provides up to 10X the life of standard black oxide drill bits and exceptional wear resistance for heavy-duty applications.
• Variable Helix Design: Features an aggressive 35-degree helix angle transitioning to 15 degrees, promoting rapid chip removal and limiting heat buildup to maintain a sharper edge.
• Split Point Tip: The 135-degree split point tip delivers a precision start and prevents walking for fast, accurate holes.
• Versatile Application: Works equally well on stainless steel, high-alloy steel, cast iron, and other hard metals; suitable for all twist drilling scenarios.

Specifications

• Brand: Milwaukee
• Model: 48-89-2315
• Diameter: 9/32 inch
• Overall Length: 4-5/16 inch (4.33 inch)
• Material: Cobalt steel
• Flute Type: Twist, 2-flute
• Helix Angle: 35 degrees ending at 15 degrees
• Tip Style: 135-degree split point