Eagle Cutting Tool HT-3125-24-P-D 5/16-24 Hss Hand Plug Tap

Product Description

The EAGLE CUTTING TOOL HT-3125-24-P-D is a 5/16-24 high-speed steel (HSS) hand plug tap manufactured in the USA. This tap is designed to cut internal threads in metal workpieces by hand, producing a 5/16-inch diameter thread with a 24 threads-per-inch (TPI) pitch — a fine-thread designation common in automotive, mechanical, and precision fastening applications. The plug chamfer style features a moderate lead-in of approximately 3 to 5 threads, making it suitable for both through holes and deeper blind holes where a starting taper tap is not required. Licensed machinists, plumbers, pipefitters, electricians, and HVAC technicians keep hand taps like this on hand for field thread repair and fabrication work.

This tap is intended for hand-tapping operations in a variety of trade and shop environments. The 5/16-24 UNF (Unified Fine Thread) specification makes it a common choice for thread repair on threaded fastener bores, equipment enclosures, control panels, and mechanical assemblies where fine-thread engagement is specified. It is well suited for use in steel, aluminum, brass, and similar machinable metals when used with an appropriate cutting fluid and a standard hand tap wrench or T-handle.

Key Features

• 5/16-24 UNF fine-thread specification for precision thread-cutting applications
• High-speed steel (HSS) construction provides hardness and wear resistance across common metals
• Plug chamfer with moderate lead-in suits both through holes and deeper blind holes
• USA manufactured for consistent dimensional accuracy and thread form compliance
• Lightweight at 0.06 pounds — easy to carry in a field tool pouch

Compatibility

Designed as a hand tap for use in any application requiring a 5/16-24 UNF internal thread. No specific system or equipment compatibility was provided in the product data.

Installation Notes

This tap is intended for hand operation using a tap wrench — do not run it in a power drill without a suitable tapping attachment and careful speed control. Always apply a compatible cutting fluid when tapping steel or other ferrous metals to reduce heat and extend tool life. Back the tap off a quarter turn periodically to break the chip and prevent binding. Follow applicable shop safety practices and de-energize or isolate any equipment before performing thread repair work in the field.

Technical Specifications

• Thread Size: 5/16-24 UNF
• Tap Type: Hand Plug Tap
• Material: High-Speed Steel (HSS)
• Country of Origin: USA
• Weight: 0.06 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-3125-24-P-D