Eagle Cutting Tool C304-115-D Cobalt Jobber Drill Size 15

Product Description

The EAGLE CUTTING TOOL C304-115-D is a size 15 cobalt jobber-length drill bit designed for general-purpose drilling in demanding shop and field environments. Cobalt construction gives this bit higher heat resistance than standard high-speed steel, making it well suited for harder materials and continuous-duty applications. At 0.42 pounds, it is a lightweight, single-piece tool ready for immediate use. Machinists, pipefitters, electricians, and HVAC technicians rely on cobalt jobber drills when drilling through steel, cast iron, stainless, and other tough substrates where standard bits wear prematurely.

The C304-115-D is sized at drill size 15 and follows standard jobber-length proportions, making it compatible with most keyed and keyless drill chucks used in hand drills, drill presses, and magnetic base drills. It is appropriate for both residential and light commercial trade work, as well as production machining environments. USA-manufactured construction indicates domestic material and production standards, which is a common requirement on government and union job sites.

Key Features

• Cobalt construction provides superior heat resistance compared to standard HSS bits
• Jobber-length geometry balances reach and rigidity for general drilling tasks
• Size 15 designation for precise hole sizing in metal fabrication and trade work
• USA manufactured to domestic production standards
• Lightweight at 0.42 pounds for easy handling and transport

Compatibility

Designed as a standard jobber-length drill bit for use in keyed or keyless drill chucks across hand drills, drill presses, and magnetic base drills that accept the shank diameter corresponding to a size 15 drill.

Installation Notes

Secure the bit fully in the drill chuck before operation and verify the chuck is tightened to prevent slippage. Always wear appropriate eye protection when drilling metal. Use cutting fluid or lubricant when drilling hard alloys to extend bit life and reduce heat buildup. Ensure the workpiece is clamped or secured before beginning the cut to prevent movement.

Technical Specifications

• Drill Size: 15
• Bit Type: Jobber Length
• Material: Cobalt
• Country of Origin: USA
• Weight: 0.42 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C304-115-D