Eagle Cutting Tool C1080-035-D Cobalt Drill Bit 35/64

Product Description

The EAGLE CUTTING TOOL C1080-035-D is a 35/64 inch cobalt screw machine (stub length) drill bit with a 1/2 inch straight shank. Cobalt construction provides elevated heat and wear resistance compared to standard high-speed steel, making this bit well suited for drilling hard, abrasive, or stainless-grade materials. The screw machine length geometry offers a shorter flute and overall length than a jobber bit, improving rigidity and reducing deflection during drilling. Manufactured in the USA, this bit is intended for use in machine shop, maintenance, and industrial trade applications where precision hole sizing is required.

This drill bit is used in screw machine operations, manual drill presses, CNC drilling setups, and hand-fed power drilling where a 35/64 inch diameter hole is required. The 1/2 inch shank allows direct chuck mounting in standard 1/2 inch or larger drill press and machine tool chucks. It is commonly selected by machinists, millwrights, and maintenance technicians working with ferrous metals, stainless steel, cast iron, and similarly hard workpiece materials.

Key Features

• Cobalt construction for improved heat resistance and extended tool life in hard materials
• Screw machine (stub) length geometry reduces deflection and improves hole accuracy
• 35/64 inch cutting diameter for precise hole sizing
• 1/2 inch straight shank for compatibility with standard drill press and machine chucks
• Manufactured in the USA

Compatibility

Designed for use in drill presses, screw machines, and CNC drilling equipment fitted with a 1/2 inch or larger chuck capacity accepting straight-shank tooling.

Installation Notes

This bit is installed by a machinist or maintenance technician into a drill press or machine tool chuck. Ensure the machine is fully powered down and the chuck is secured before tightening. Use appropriate cutting fluid or coolant when drilling hard or stainless materials to extend tool life and maintain hole quality. Follow applicable shop safety procedures and machine guarding requirements during operation.

Technical Specifications

• Cutting Diameter: 35/64 inches
• Shank Diameter: 1/2 inch
• Drill Series: Screw Machine (Stub Length)
• Material: Cobalt
• Country of Origin: USA
• Weight: 0.69 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1080-035-D