Eagle Cutting Tool SC400-020-D Cobalt Stub Drill 5/16 in

Product Description

The EAGLE CUTTING TOOL SC400-020-D is a 5/16-inch cobalt stub drill designed for high-performance drilling in tough materials. The 135-degree split point geometry reduces walking and allows the bit to self-center on contact, eliminating the need for a center punch in most applications. The stub-length body provides added rigidity over jobber-length drills, making it well suited for drilling in tight spaces or through hard materials where deflection is a concern. Manufactured in the USA, this drill is built to meet the demands of professional machinists, pipefitters, ironworkers, and maintenance technicians working with steel, stainless, and other hard alloys.

This drill is used in industrial, commercial, and trade applications where standard high-speed steel bits fall short. Typical scenarios include drilling through structural steel, pipe, angle iron, and hardened plate. The cobalt alloy composition allows the bit to retain its cutting edge at elevated temperatures, making it a reliable choice for continuous drilling cycles on drill presses, magnetic drills, and hand drills. It is a direct fit for any standard 3/8-inch or larger drill chuck.

Key Features

• 5/16-inch diameter cobalt construction for heat and wear resistance
• 135-degree split point reduces thrust and prevents bit walking on contact
• Stub-length body increases rigidity and reduces deflection in hard materials
• USA manufactured to industrial tolerances
• Compatible with standard drill chucks accepting 3/8-inch and larger capacity

Compatibility

Designed as an OEM-style replacement or direct-use stub drill for standard drill chucks in industrial and trade drilling applications.

Installation Notes

This drill is installed and operated by machinists, pipefitters, ironworkers, and general maintenance trades. Secure the bit fully in the chuck before operation and confirm the chuck key is removed prior to powering the drill. Use appropriate cutting fluid when drilling hard alloys to extend bit life and maintain safe operating temperatures. Follow applicable OSHA and shop-floor safety standards for drilling operations, including eye protection and workpiece clamping.

Technical Specifications

• Diameter: 5/16 inches
• Point Angle: 135 degrees split point
• Material: Cobalt alloy
• Length Type: Stub
• Country of Origin: USA
• Weight: 0.95 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: SC400-020-D