Eagle Cutting Tool SC400-021-I Cobalt Stub Drill 21/64

Product Description

The EAGLE CUTTING TOOL SC400-021-I is a 21/64 inch cobalt stub drill designed for metal drilling in demanding trade and industrial applications. The stub-length body offers increased rigidity compared to standard-length drills, reducing deflection and improving hole accuracy in tough materials. Cobalt construction provides enhanced heat resistance and durability when drilling hard metals such as stainless steel, cast iron, and high-strength alloys. This drill is suited for machinists, pipefitters, electricians, and HVAC technicians who regularly drill through hard substrates on the job.

The SC400-021-I is appropriate for use in both shop and field environments where a 21/64 inch hole diameter is required. The stub-length profile makes it a preferred choice in tight-clearance drilling situations where a full-length drill would be impractical. It is well suited for drilling pilot holes, clearance holes, and tapping preparation holes in ferrous and non-ferrous metals across residential, commercial, and light industrial settings.

Key Features

• 21/64 inch diameter for precise hole sizing in metal work
• Cobalt construction delivers superior heat and wear resistance over standard high-speed steel
• Stub-length body increases rigidity and reduces bit deflection during drilling
• Suitable for hard metals including stainless steel and high-strength alloys
• Minimum order quantity of 1 for flexible purchasing

Compatibility

Designed as an OEM-style stub drill replacement compatible with standard drill chucks and drilling equipment accepting 21/64 inch shank sizes across trade and industrial drilling applications.

Installation Notes

Cobalt stub drills should be installed in a properly rated drill press, handheld drill, or drill driver with a compatible chuck rated for the shank diameter. Secure the workpiece firmly before drilling to prevent movement and bit breakage. Use appropriate cutting fluid when drilling hard metals to extend bit life and maintain hole quality. Follow applicable workplace safety standards including eye protection and secure workholding practices.

Technical Specifications

• Drill Diameter: 21/64 inch
• Drill Type: Stub Length
• Material: Cobalt
• Weight: 0.95 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: SC400-021-I