Eagle Cutting Tool SP-2500-28-P-I Hss Spiral Point Plug Tap

Product Description

The EAGLE CUTTING TOOL SP-2500-28-P-I is a 1/4-28 UNF high-speed steel (HSS) spiral point plug tap designed for threading operations in ferrous and non-ferrous metals. The spiral point geometry pushes chips ahead of the cutting flutes rather than backing them into the flute, keeping the thread path clear during through-hole tapping. The plug chamfer provides a gradual lead-in and is suited for general-purpose threading where the tap can run through the full depth of the hole. This tap is a standard tool for machinists, pipefitters, and maintenance technicians working in production or field environments.

This tap is intended for use on 1/4-28 UNF fine-thread applications in through-hole configurations. It is commonly used in automotive, HVAC, electrical, and mechanical assembly work where fine-thread fasteners are required. The HSS construction handles moderate cutting speeds and is compatible with standard tapping fluids. It is well suited for hand tapping with a tap wrench or machine tapping on a drill press or CNC setup running at appropriate speeds for the material being threaded.

Key Features

• 1/4-28 UNF fine-thread size for precision fastener applications
• High-speed steel (HSS) construction provides durability across a range of metals
• Spiral point design pushes chips forward through the hole, reducing clog risk in through-hole tapping
• Plug chamfer offers a gradual lead-in suitable for most general threading work
• Compatible with standard tapping lubricants and cutting fluids

Compatibility

Designed as a general-purpose replacement or stock tap for 1/4-28 UNF through-hole threading applications across a wide range of metals and alloys.

Installation Notes

This tap is installed by machinists or maintenance technicians using a tap wrench for hand tapping or a suitable machine tapping setup. Always ensure the pilot hole is drilled to the correct tap drill size for 1/4-28 UNF before starting the thread. Apply an appropriate cutting fluid or tapping compound for the base material to extend tool life and improve thread quality. Back the tap out periodically during hand tapping to break chips and prevent binding.

Technical Specifications

• Thread Size: 1/4-28 UNF
• Thread Standard: UNF (Unified Fine)
• Material: High-Speed Steel (HSS)
• Tap Style: Spiral Point
• Chamfer Type: Plug
• Weight: 0.1 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: SP-2500-28-P-I