Eagle Cutting Tool S400-025-I Hss Stub Drill 25/64

Product Description

The EAGLE CUTTING TOOL S400-025-I is a 25/64 inch high-speed steel (HSS) stub drill designed for metal drilling applications in trade and industrial environments. Stub drills, also called screw machine length drills, feature a shorter flute length and overall body compared to jobber-length bits. This shorter geometry increases rigidity and reduces deflection, making the S400-025-I well suited for drilling in tight spaces or on drill presses and screw machines where a shorter reach is required. Machinists, pipefitters, and general fabrication tradespeople are the primary users of this style of bit.

The S400-025-I is used in metal fabrication shops, mechanical contracting, and maintenance environments where hole sizing accuracy matters. The 25/64 inch diameter is a common size for clearance holes, tap-drill preparation, and close-tolerance work on ferrous and non-ferrous metals. Its compact stub length allows it to be used in confined access areas where a standard jobber drill would be impractical or prone to chatter.

Key Features

• 25/64 inch diameter for precise hole sizing in metal applications
• High-speed steel (HSS) construction provides hardness and heat resistance during cutting
• Stub length design increases rigidity and reduces bit deflection
• Suitable for use in drill presses, screw machines, and hand-held power drills
• Minimum order quantity of 1 unit

Compatibility

Designed as a standard stub-length HSS drill bit compatible with any 3-jaw chuck or collet system accepting a 25/64 inch shank, including drill presses, CNC screw machines, and power hand drills used in metal fabrication and mechanical trade work.

Installation Notes

A licensed machinist or qualified tradesperson should secure the bit firmly in the chuck before operation and verify the chuck is fully tightened to prevent slippage. Always power down and de-energize the drilling equipment before inserting or removing the bit. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain hole quality. Eye protection and chip guards are required per standard shop safety practice.

Technical Specifications

• Diameter: 25/64 inch
• Drill Style: Stub Length (Screw Machine Length)
• Material: High-Speed Steel (HSS)
• Weight: 0.95 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: S400-025-I