Eagle Cutting Tool HT-5625-18-P-D 9/16-18 Hss Plug Tap

Product Description

The EAGLE CUTTING TOOL HT-5625-18-P-D is a 9/16-18 high-speed steel (HSS) hand plug tap manufactured in the USA. Plug taps feature a tapered lead of 3 to 5 threads, making them the standard choice for starting threads in through-holes or continuing threads in blind holes where a taper tap has already started the cut. This tap is sized for 9/16-inch diameter threads at 18 threads per inch (UNF fine-thread pitch). It is used by machinists, pipefitters, maintenance technicians, and tradespeople who need reliable thread-cutting performance in ferrous and non-ferrous metals.

This tap suits general-purpose threading applications in shop, field, and maintenance environments. The 9/16-18 UNF specification is commonly encountered in automotive, hydraulic, and mechanical assembly work where fine-thread engagement is required for vibration resistance or precise load control. It is appropriate for hand-tapping operations in steel, cast iron, aluminum, brass, and similar materials.

Key Features

• 9/16-18 UNF fine-thread form for high-strength thread engagement
• Plug chamfer with 3 to 5 lead threads for versatile through-hole and blind-hole use
• High-speed steel construction for durability across a range of metals
• USA manufactured for consistent dimensional accuracy and quality control
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed as a standard hand plug tap for 9/16-18 UNF threaded holes in general machining and maintenance applications.

Installation Notes

This tap is intended for hand-tapping operations using a tap wrench; it is not designed for machine tapping without verification of appropriate speeds and holder compatibility. Apply cutting fluid to the tap and workpiece before threading to reduce heat and extend tool life. Back the tap off a half turn periodically to break chips and prevent binding, especially in blind holes. Inspect the tap for wear or chipping before each use and replace if damaged to avoid thread damage in the workpiece.

Technical Specifications

• Thread Size: 9/16-18 UNF
• Tap Type: Hand Plug Tap
• Material: High-Speed Steel (HSS)
• Country of Origin: USA
• Weight: 0.32 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-5625-18-P-D