Eagle Cutting Tool C304-112-D Cobalt Jobber Drill Bit

Product Description

The EAGLE CUTTING TOOL C304-112-D is a size 12 cobalt jobber-length drill bit manufactured in the USA. Cobalt construction gives this bit superior heat resistance and hardness compared to standard high-speed steel, making it well suited for drilling through tough ferrous metals, stainless steel, cast iron, and hard alloys. Jobber-length geometry provides a balanced combination of reach and rigidity for general-purpose drilling across a wide range of applications. This bit is a standard choice for electricians, plumbers, pipefitters, HVAC technicians, and mechanical contractors who regularly drill into hardened or abrasive materials on the job.

This drill bit is appropriate for use in both hand-held and drill-press setups across residential, commercial, and light industrial service work. Typical applications include drilling pilot and clearance holes in structural steel, equipment frames, brackets, and mechanical assemblies. Its jobber-length shank fits standard three-jaw chucks and is compatible with common corded and cordless drill drivers used in trade work. Made in the USA, this bit is suited for shops and service technicians who require consistent performance from domestic tooling stock.

Key Features

• Cobalt construction for improved heat and wear resistance when drilling hard metals
• Jobber-length geometry balances reach and rigidity for general-purpose use
• Size 12 wire gauge diameter fits standard chuck and drill-press setups
• USA manufactured for consistent dimensional and metallurgical quality
• Suitable for stainless steel, cast iron, hard alloys, and other ferrous materials

Compatibility

Designed as a general-purpose cobalt jobber drill bit compatible with standard three-jaw chucks on hand drills and drill presses accepting wire gauge size 12 tooling.

Installation Notes

This bit is installed by licensed tradespeople and experienced technicians using standard drill equipment. Secure the workpiece and ensure the drill chuck is fully tightened before operation. Use appropriate cutting fluid or lubricant when drilling hard metals to extend bit life and reduce heat buildup. Follow applicable shop safety standards and wear appropriate eye protection during use.

Technical Specifications

• Drill Size: 12 (wire gauge)
• Drill Type: Jobber Length
• Material: Cobalt
• Country of Origin: USA
• Weight: 0.42 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C304-112-D