Eagle Cutting Tool HT-5625-18-P-I 9/16-18 Hand Plug Tap

Product Description

The EAGLE CUTTING TOOL HT-5625-18-P-I is a 9/16-18 hand plug tap manufactured from high-speed steel (HSS). A plug tap features a chamfer on the first several threads, making it the standard starting point for most hand-tapping operations. It cuts internal threads in through-holes and blind holes where a moderate lead-in is acceptable. This tap is suited for use in metalworking, maintenance, and repair applications across plumbing, HVAC, electrical, and general mechanical trades. The 9/16-18 designation indicates a 9/16-inch major diameter with 18 threads per inch (UNF), a fine-thread standard common in precision fastener applications.

This tap is appropriate for hand-tapping operations in ferrous and non-ferrous metals where a fine-thread UNF profile is required. The plug chamfer makes it versatile for both through-hole and deeper blind-hole threading. Tradespeople and machinists use this tap when repairing stripped threads, fabricating custom threaded connections, or creating new tapped holes in structural and mechanical components.

Key Features

• 9/16-18 UNF fine-thread profile for precision threaded connections
• High-speed steel (HSS) construction for durability across a range of metals
• Plug chamfer provides moderate lead-in, suitable for through-holes and blind holes
• Designed for hand-tapping use with a standard tap wrench
• Lightweight at 0.31 pounds for easy handling during detailed work

Compatibility

Designed as an OEM-style replacement or direct-use hand plug tap for applications requiring 9/16-18 UNF internal threads in metalworking, maintenance, and repair operations.

Installation Notes

This tap is installed by a machinist or skilled tradesperson using a standard tap wrench. Always use cutting fluid appropriate to the base material to reduce friction and extend tap life. Ensure the tap is started square to the workpiece to prevent thread misalignment or tap breakage. Follow applicable shop safety practices and secure the workpiece firmly before beginning the tapping operation.

Technical Specifications

• Thread Size: 9/16-18 UNF
• Material: High-Speed Steel (HSS)
• Tap Type: Hand Plug Tap
• Weight: 0.31 pounds
• Minimum Order Quantity: 1

Standard Information

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