Eagle Cutting Tool S304-112-I Cobalt Jobber Drill

Product Description

The EAGLE CUTTING TOOL S304-112-I is a cobalt jobber-length drill bit sized at 1/2 inch, designed for drilling into tough materials where standard high-speed steel bits fall short. Cobalt construction provides superior heat resistance and extended cutting life when working through stainless steel, cast iron, hardened alloys, and other hard metals. This drill bit follows standard jobber-length proportions, giving it a versatile reach suited to bench drilling, hand-held drill work, and drill press applications. Trade professionals in HVAC, plumbing, electrical, and fabrication rely on cobalt bits when penetrating hard base metals is part of the job.

This bit is appropriate for use in light industrial and commercial settings where material hardness demands more than standard HSS tooling. Typical applications include drilling pilot holes in structural steel, penetrating heavy-gauge sheet metal, and boring through hard alloy fittings or brackets. The jobber-length design fits standard drill chucks without additional adapters, making it a direct drop-in for most portable drills and drill presses used in the field or shop.

Key Features

• Cobalt steel construction for increased heat resistance and longer service life versus standard HSS
• 1/2 inch diameter for heavy-duty boring applications
• Jobber-length proportions compatible with standard drill chucks
• Suited for stainless steel, cast iron, hardened alloys, and hard metals
• Minimum order quantity of 1 unit

Compatibility

Designed as a general-purpose replacement or supplemental cobalt jobber drill for use in standard 1/2 inch chuck portable drills and drill presses across trade and light industrial applications.

Installation Notes

Cobalt drill bits should be installed in a properly rated chuck and secured firmly before use. Always wear appropriate eye protection when drilling metal. Use cutting fluid or lubricant when drilling through hard metals to reduce heat buildup and extend bit life. Inspect the bit for chipping or wear before each use and replace if the cutting edge is compromised.

Technical Specifications

• Diameter: 1/2 inch
• Type: Cobalt Jobber Drill
• Weight: 0.4 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: S304-112-I