48-89-2310 Red Helix Cobalt Drill Bit, 13/64 In., 3-3/4 In. Oal

The Milwaukee 48-89-2310 RED HELIX Cobalt Drill Bit is engineered for extreme durability and long life in hard metal applications. This professional-grade twist drill bit delivers up to 10 times the life of standard black oxide drill bits, making it an essential tool for demanding drilling tasks in stainless steel, high alloy steel, cast iron, and other tough materials. Whether you're a professional contractor or a serious DIY enthusiast, this cobalt drill bit tackles precision drilling challenges that standard bits cannot handle.

Hard metal drilling requires a tool designed to withstand heat, pressure, and wear. The Milwaukee RED HELIX cobalt bit solves common drilling problems—walking, heat buildup, slow chip removal, and premature dulling—by combining advanced geometry with premium material. Its precision split point tip prevents bit walk and enables fast, accurate holes from the first contact, while the variable helix design minimizes heat to keep the bit sharper longer.

Features and Benefits

• High-Grade Cobalt Material: Engineered for extreme durability in hard metal applications, providing up to 10 times the life compared to standard black oxide drill bits.
• Variable Helix Design: Features an aggressive 35-degree helix angle that transitions to 15 degrees, enabling rapid chip removal and minimizing heat buildup during operation.
• 135° Split Point Tip: Delivers a precision start that prevents walking and enables fast, accurate holes in a variety of demanding materials.
• Chip-Breaking Geometry: Reduces chip size and improves material removal, further aiding performance and reducing heat buildup in deep holes.
• Versatile Applications: Suitable for all twist drilling applications and can drill on curved metal surfaces without sacrificing accuracy.

Specifications

• Brand: Milwaukee
• Model: 48-89-2310
• Diameter: 13/64 inch
• Overall Length: 3-3/4 inches
• Point Angle: 135 degrees
• Flute Type: Twist, 2-flute
• Material: Cobalt