Eagle Cutting Tool C300-024-D Cobalt Jobber 3/8 Inch

Product Description

The EAGLE CUTTING TOOL C300-024-D is a 3/8-inch cobalt jobber-length drill bit manufactured in the USA. Cobalt construction gives this bit the heat resistance and hardness needed to cut through tough materials including stainless steel, cast iron, and hardened alloys without losing temper at the cutting edge. Jobber-length geometry provides a balanced combination of reach and rigidity, making it a practical choice for general-purpose drilling in trade and industrial environments. Electricians, plumbers, pipefitters, and HVAC technicians commonly use jobber-length cobalt bits when drilling through structural steel, metal framing, or heavy-gauge sheet metal.

This bit is suited for use in both handheld and drill-press applications across residential, commercial, and light industrial job sites. The 3/8-inch diameter is a commonly required size for conduit knockouts, pipe hanger anchors, bolt clearance holes, and similar trade drilling tasks. Its cobalt composition makes it especially effective where high-speed steel bits overheat or dull quickly under sustained cutting loads.

Key Features

• 3/8-inch diameter cobalt construction for high heat and wear resistance
• Jobber-length geometry balances reach with bit rigidity
• USA-manufactured for consistent dimensional and metallurgical quality
• Suitable for drilling stainless steel, cast iron, hardened alloys, and structural steel
• Compatible with standard 3/8-inch and 1/2-inch drill chucks

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard keyed or keyless drill chuck accepting 3/8-inch round shanks, including handheld drills and drill presses.

Installation Notes

Cobalt drill bits should be run at appropriate cutting speeds for the material being drilled — slower speeds for harder metals help preserve the cutting edge. Always secure the workpiece firmly before drilling and use cutting fluid or oil when drilling ferrous metals to reduce heat buildup and extend bit life. Wear appropriate eye and hand protection per site safety requirements. Inspect the cutting edges before each use and replace bits showing chipping or rounding at the tip.

Technical Specifications

• Diameter: 3/8 inches
• Drill Type: Jobber Length
• Material: Cobalt
• Country of Origin: USA
• Weight: 1.2 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C300-024-D