Eagle Cutting Tool C304-103-D Cobalt Jobber Drill Size 3

Product Description

The EAGLE CUTTING TOOL C304-103-D is a size 3 cobalt jobber-length drill bit manufactured in the USA. Cobalt construction provides elevated heat and wear resistance compared to standard high-speed steel, making this bit well suited for drilling hard metals, stainless steel, cast iron, and other tough materials encountered in trade and industrial work. The jobber-length flute geometry offers a practical balance of reach and rigidity for general-purpose drilling across a wide range of applications. Machinists, pipe fitters, ironworkers, and maintenance technicians commonly rely on cobalt jobber drills for both production and field work.

This drill bit is used in residential, commercial, and industrial settings where metal fabrication, pipe fitting, structural steel work, or mechanical maintenance is performed. It is appropriate for use in standard drill presses, hand drills, and magnetic-base drills. The size 3 designation refers to a numbered wire gauge drill size, placing it in the smaller end of the numbered drill series. It is a common size for tap drilling, close-tolerance hole work, and other precision-fit applications in metal.

Key Features

• Cobalt construction for improved heat resistance and extended tool life in hard metals
• Jobber-length flute for versatile general-purpose drilling depth and rigidity
• Size 3 wire gauge designation for precise hole sizing and tap-drill applications
• USA manufactured

Compatibility

Designed as an OEM-style replacement and standard-grade cobalt jobber drill for use in any drill press, hand drill, or magnetic-base drill accepting the appropriate shank diameter for a size 3 wire gauge bit.

Installation Notes

Cobalt drill bits should be installed by qualified machinists or trade professionals familiar with proper cutting speeds and feeds for the material being drilled. Secure the workpiece and confirm chuck tightness before operation. Use appropriate cutting fluid when drilling hard metals to extend bit life and maintain hole quality. Inspect the cutting edges before each use and replace any bit showing visible wear or chipping.

Technical Specifications

• Drill Size: 3 (wire gauge)
• Material: Cobalt
• Length Type: Jobber
• Country of Origin: USA
• Weight: 0.42 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C304-103-D