Power Tools
MX FUEL™ Equipment
Batteries, Chargers & Power Supplies
Site Lighting
Sewer & Drain Maintenance
Outdoor Power Equipment
Instruments
Hand Tools
Storage
Jobsite Apparel
Accessories
Safety Solutions
ONE-KEY
Support
New Pipeline
world leader in
cordless innovation
M125™ logo
M18™ Logo
MX FUEL™ logo
most versatile, durable
modular storage system
PACKOUT Modular Storage System

Sign Up / Log In

Where To Buy

US : : EN

Contact

Home
…
Products
Accessories
Metal Drilling
Twist Drill Bits
  • 48-89-2311 Primary Image
  • The Red Helix Cobalt drill bit offers increased durability and faster drilling. It provides up to 15 times longer life compared to black oxide drill bits. The image displays the drill bit actively cutting through metal, highlighting its robust and efficient performance qualities.
  • Cobalt Drill Bits are ideal for drilling various materials including wood, PVC, copper, aluminum, duct/sheet metal, angle iron, metal, cast iron, and stainless steel. They are compatible with all drill/drivers.
  • Milwaukee 7/32 in. Cobalt Red Helix Twist Drill Bit features a Quad Edge tip for durability, a Variable Helix for faster material removal, and a thicker tapered web for increased bit strength. It measures 3.74 inches in length and includes Secure-Grip to prevent slipping in the chuck.
  • Comparison chart showing Cobalt Drill Bit as suitable for hard metal applications, lasting up to 15 times longer than black oxide bits. It has a 3-flat secure grip shank and is used with drills/drivers. Other options include Black Oxide and Shockwave, which are suitable for general purposes and metal respectively.
  • The RED HELIX™ Cobalt 1/2" Drill Bit is shown being used with a power drill to cut through a piece of metal, creating metal shavings. The background displays an industrial work environment.
  • The RED HELIX™ Cobalt 3/8" Drill Bit is attached to a drill and is actively drilling into a metal surface, creating fine metal shavings. The drill is held by a hand and positioned above a square metal object, with industrial pipes in the background.
48-89-2311

7/32" COBALT RED HELIX™ Drill Bit

Share

Options:

The RED HELIX™ Cobalt 7/32" Drill Bit features a gold-colored metal construction with a spiral flute design. Engineered for durability and precision, it is intended for drilling through tough materials like stainless steel. The product name is engraved near the base.

Bit Diameter: 7/32"

Specs

Loading
Manuals
Parts List

Product Overview

Milwaukee® 7/32" Cobalt Red Helix™ Drill Bit

  • 135° split point for precision start no walking

  • CHIP BREAKER™ Decreased Heat Buildup

  • RED HELIX™ Design for Rapid Chip Removal™

  • Secure Grip™ - Prevents bit from slipping in chuck

  • Up to 10X Life vs. Black Oxide

  • 3-Flat Secure-Grip™ helps keep the bit fixed within the the chuck

  • Designed for Hard Metals, PVC and Wood

Reviews

Additional Resources

Manuals
Warranty
Parts List
Fix My Tool

© 2026 by Milwaukee Tool. All rights reserved.

Legal
Patent
Safety Notices
Your Privacy Choices
Cookie Preferences
Privacy Notice
Contact Us