Eagle Cutting Tool C1090-106-I Cobalt Drill Bit 1-3/32 in

Product Description

The EAGLE CUTTING TOOL C1090-106-I is a cobalt screw machine length (stub) drill bit designed for drilling into hard and abrasive materials including stainless steel, cast iron, titanium, and high-alloy steels. Cobalt construction provides superior heat resistance compared to standard high-speed steel, making it well suited for production environments where sustained cutting speeds generate significant heat. The bit measures 1-3/32 inches in diameter with a 1/2 inch straight shank, fitting standard drill chucks and milling machine spindles. Machinists, tool-and-die workers, and fabricators rely on this type of bit for applications where standard HSS tooling fails prematurely.

This drill bit is used in metal fabrication shops, machine shops, and manufacturing facilities requiring consistent performance on tough workpiece materials. The screw machine length profile provides greater rigidity than jobber-length bits, reducing deflection and improving hole accuracy in short-depth drilling operations. It is appropriate for use in drill presses, manual milling machines, CNC machining centers, and hand-held drill motors where a 1/2 inch shank is accepted. The imported construction makes it a practical choice for production drilling where tooling consumption is high.

Key Features

• Cobalt alloy construction resists heat buildup during high-speed or continuous drilling in hard metals
• Screw machine length body provides added rigidity and reduced bit deflection compared to jobber-length alternatives
• 1-3/32 inch diameter suits medium-to-large hole requirements without pilot drilling on most materials
• 1/2 inch straight shank compatible with standard drill chucks and collet holders
• Minimum order quantity of 1 allows single-unit purchasing for service and repair applications

Compatibility

Designed as an OEM-style replacement or direct-use cobalt drill bit for drill presses, milling machines, and hand-held power tools accepting a 1/2 inch straight shank.

Installation Notes

Secure the 1/2 inch shank fully in the chuck or collet before operation and verify runout before cutting. Use appropriate cutting fluid or lubricant when drilling stainless steel or hardened alloys to extend tool life and maintain hole quality. Always power down and de-energize the machine before changing tooling. Eye protection and proper workpiece clamping are required when operating rotary cutting tools.

Technical Specifications

• Drill Diameter: 1-3/32 inches
• Shank Diameter: 1/2 inch
• Drill Type: Screw Machine Length (Stub)
• Material: Cobalt High-Speed Steel
• Weight: 1.2 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1090-106-I