Eagle Cutting Tool C300-028-D Cobalt Jobber Drill 7/16 in

Product Description

The EAGLE CUTTING TOOL C300-028-D is a 7/16-inch cobalt jobber-length drill bit manufactured in the USA. Cobalt construction gives this bit the heat resistance needed to cut through hard metals, stainless steel, cast iron, and other tough materials that would quickly dull standard high-speed steel tooling. The jobber-length geometry balances reach and rigidity, making it a reliable choice for general-purpose drilling in trade and fabrication environments. HVAC techs, plumbers, electricians, and sheet-metal workers will find this bit at home in both production and service work.

This drill bit is suited for drilling ferrous and non-ferrous metals, hard plastics, and composite materials encountered in mechanical, electrical, and plumbing rough-in work. It is equally applicable on the bench drill press or in a heavy-duty portable drill. The 7/16-inch diameter is a common size for clearance holes, anchor bolt pilot holes, and conduit knockout starter applications across residential and light commercial jobsites.

Key Features

• Cobalt steel construction for superior heat resistance and extended tool life in hard-metal applications
• 7/16-inch diameter covers a wide range of common trade drilling tasks
• Jobber-length geometry provides balance between reach and bit stiffness
• Manufactured in the USA
• Minimum order quantity of 1 — no bulk commitment required

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck accepting a 7/16-inch shank, including corded and cordless portable drills and bench-mounted drill presses.

Installation Notes

This bit is installed and used by trades professionals including HVAC technicians, electricians, and plumbers during rough-in and service work. Use appropriate RPM for the material being drilled — harder materials require lower speeds and consistent feed pressure. Secure the workpiece before drilling, and use cutting fluid when drilling hard metals to extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.

Technical Specifications

• Drill Diameter: 7/16 inches
• Length Type: Jobber
• Material: Cobalt Steel
• Country of Origin: USA
• Weight: 1.2 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C300-028-D