Eagle Cutting Tool C1090-050-I Cobalt Drill Bit 25/32 in

Product Description

The EAGLE CUTTING TOOL C1090-050-I is a 25/32-inch cobalt screw machine (stub length) drill bit with a 1/2-inch straight shank. Cobalt construction provides increased heat resistance and hardness compared to standard high-speed steel, making this bit well suited for drilling through stainless steel, cast iron, hard alloys, and other tough materials encountered in trade and industrial work. The reduced flute length of a screw machine design improves rigidity and reduces deflection, which is critical when drilling in tight clearances or on production runs where hole accuracy matters.

This drill bit is appropriate for use in machine shop environments, fabrication shops, and on-site mechanical work where hard or abrasive base materials are common. Typical applications include drilling bolt-hole clearances, conduit knockouts in thick panels, and fitting openings in HVAC and plumbing rough-in scenarios. The 1/2-inch shank fits standard 1/2-inch drill chucks found on both portable drills and drill press equipment, keeping setup time minimal.

Key Features

• 25/32-inch cutting diameter for precise oversize clearance holes
• Cobalt steel construction for superior heat and wear resistance versus standard HSS bits
• Screw machine (stub) length increases rigidity and reduces bit deflection
• 1/2-inch straight shank for compatibility with standard drill chucks
• Minimum order quantity of 1, available as a single unit

Compatibility

Designed for use in any 1/2-inch capacity drill chuck, including portable drills and bench-mounted drill presses used in mechanical, fabrication, and trade service applications.

Installation Notes

This bit is intended for use by machinists, fabricators, and trade professionals working with ferrous and non-ferrous metals. Secure the workpiece before drilling and use appropriate cutting fluid or coolant when drilling hard alloys or stainless steel to extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed. Follow applicable shop safety protocols, including eye protection and proper chuck tightening procedures.

Technical Specifications

• Cutting Diameter: 25/32 inches
• Shank Diameter: 1/2 inch
• Bit Type: Screw Machine (Stub Length)
• Material: Cobalt Steel
• Weight: 0.69 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: C1090-050-I