Eagle Cutting Tool C304-131-D Cobalt Jobber Drill Size 31

Product Description

The EAGLE CUTTING TOOL C304-131-D is a size 31 cobalt jobber-length drill bit manufactured in the USA. Cobalt construction provides added heat resistance and hardness compared to standard high-speed steel, making this bit suitable for drilling into harder materials such as stainless steel, cast iron, and hardened alloys. The jobber-length format delivers a versatile flute-to-shank ratio that fits most standard drill chucks and works across a wide range of drilling applications in trade and industrial settings. This bit is appropriate for machinists, pipefitters, HVAC techs, and electricians who regularly drill through tough base metals.

This cobalt jobber drill is suited for both shop and field use where a reliable, heat-resistant drill bit is required. Typical applications include metal fabrication, equipment repair, pipe work, and panel drilling. The USA manufacturing origin indicates domestic production standards. It fits standard drill chucks compatible with the size 31 wire gauge drill diameter and is well-suited for production drilling or one-off service calls where bit longevity in hard materials matters.

Key Features

• Cobalt construction for improved heat resistance and hardness over standard HSS bits
• Size 31 wire gauge diameter for precise hole sizing
• Jobber-length flute for versatile reach and chuck compatibility
• USA manufactured
• Minimum order quantity of 1, suitable for single-unit purchase

Compatibility

Designed as a standard wire gauge size 31 jobber-length drill bit compatible with conventional drill chucks accepting the corresponding shank diameter.

Installation Notes

This bit is installed and operated by machinists, pipefitters, electricians, and general trade professionals using standard corded or cordless drill equipment or drill presses. Secure the bit firmly in the chuck before operation and ensure the workpiece is properly clamped. Use appropriate cutting fluid when drilling hard metals to extend bit life and reduce heat buildup. Inspect the cutting edges before each use and replace if chipping or dulling is evident.

Technical Specifications

• Drill Size: 31 (wire gauge)
• Drill Type: Jobber Length
• Material: Cobalt
• Country of Origin: USA
• Weight: 0.12 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C304-131-D