Eagle Cutting Tool C1080-041-D Cobalt Drill Bit 41/64 in

Product Description

The EAGLE CUTTING TOOL C1080-041-D is a cobalt screw machine (stub length) drill bit with a 41/64 inch cutting diameter and a 1/2 inch reduced shank. Cobalt construction provides superior heat resistance compared to standard high-speed steel, making this bit suited for drilling hard and abrasive materials including stainless steel, cast iron, titanium, and hardened alloys. The stub length body offers increased rigidity and reduced deflection, which is especially valuable when drilling in tight clearances or on production setups. Manufactured in the USA.

This drill bit is used in metal fabrication shops, machining operations, and maintenance environments where hard or tough materials are routinely drilled. The 1/2 inch shank allows it to seat in standard 1/2 inch drill chucks and CNC toolholders without requiring a collet reduction. Its screw machine length profile makes it a common choice for drill press, mill, and lathe tailstock work where a full-length jobber bit would introduce unwanted flex or runout.

Key Features

• 41/64 inch cutting diameter for precise hole sizing
• Cobalt alloy construction resists heat buildup during high-speed metal drilling
• 1/2 inch reduced shank fits standard drill chucks and CNC holders directly
• Stub screw machine length increases rigidity and minimizes deflection
• Made in the USA

Compatibility

Designed as a direct-fit replacement for standard 41/64 inch cobalt screw machine drill bits with a 1/2 inch shank, compatible with any drill press, mill, or CNC machine equipped with a 1/2 inch or larger chuck or toolholder.

Installation Notes

Installation is performed by machinists, tool and die technicians, or maintenance mechanics. Secure the shank fully in the chuck or collet before operation and verify runout before drilling into workpieces. Always use appropriate cutting fluid for the material being drilled to extend tool life and maintain hole quality. Follow shop safety protocols including eye protection and secure workpiece fixturing.

Technical Specifications

• Cutting Diameter: 41/64 inch
• 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: C1080-041-D