Eagle Cutting Tool C304-142-D Cobalt Jobber Drill No. 42

Product Description

The EAGLE CUTTING TOOL C304-142-D is a No. 42 cobalt jobber-length drill bit manufactured in the USA. Cobalt construction gives this bit increased heat resistance and hardness compared to standard high-speed steel, making it well suited for drilling tough materials such as stainless steel, cast iron, titanium, and hard alloys. The jobber-length flute provides a versatile reach appropriate for general-purpose production drilling. This bit is a standard tool for machinists, pipefitters, and maintenance technicians working in metal fabrication and mechanical service environments.

The C304-142-D is used in hand-held drill motors, drill presses, and CNC or manual turret lathes wherever a No. 42 wire-gauge diameter hole is required. Typical applications include tapping pilot holes, clearance holes for fasteners, and precision-diameter work in ferrous and non-ferrous metals. The USA manufacture designation indicates domestic production standards for cobalt alloy composition and point geometry.

Key Features

• No. 42 wire-gauge diameter for precision hole sizing
• Cobalt alloy construction for superior heat and wear resistance versus standard HSS
• Jobber-length flute geometry for general-purpose versatility
• Manufactured in the USA
• Minimum order quantity of 1 unit

Compatibility

Designed as a standard No. 42 wire-gauge jobber drill compatible with any 3-jaw chuck or collet system sized to accept the corresponding shank diameter.

Installation Notes

A licensed machinist or qualified maintenance technician should secure the bit firmly in a properly sized chuck or collet before use. Ensure the drill press or power tool is powered down and bit is fully locked before adjusting or changing tooling. Use appropriate cutting fluid when drilling hard alloys to extend bit life and manage heat buildup. Inspect the cutting edges for wear or chipping before each use and replace the bit if the point geometry is compromised.

Technical Specifications

• Drill Size: No. 42 (wire gauge)
• Type: Jobber-length drill bit
• Material: Cobalt alloy
• Country of Origin: USA
• Weight: 0.12 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C304-142-D