Eagle Cutting Tool HT-5625-12-P-I 9/16-12 Hss Plug Tap

Product Description

The EAGLE CUTTING TOOL HT-5625-12-P-I is a 9/16-12 high-speed steel (HSS) hand plug tap designed for cutting internal threads by hand in metalworking and mechanical assembly applications. The plug chamfer style features a gradual lead-in of several partial threads, allowing the tap to start easily and cut progressively through the workpiece. At 0.31 pounds, this is a lightweight, single-piece threading tool suited for bench work, field repair, and production setups where a reliable hand tap is required. Machinists, pipefitters, and maintenance technicians reach for this style of tap when threading standard unified coarse (UNC) holes in ferrous and non-ferrous metals.

This tap is intended for hand tapping operations in materials compatible with HSS tooling, including mild steel, aluminum, brass, and similar metals. The 9/16-12 designation indicates a 9/16-inch nominal diameter with 12 threads per inch (TPI) following the Unified National Coarse thread standard. It is well suited for repair work, fabrication shops, and industrial maintenance environments where standard UNC threaded fasteners are used. The import classification indicates this is a value-tier tool appropriate for general-purpose threading rather than high-volume production runs.

Key Features

• 9/16-12 UNC thread form for standard unified coarse fastener applications
• High-speed steel (HSS) construction provides adequate hardness for threading mild steel, aluminum, and brass
• Plug chamfer lead-in eases tap starting and allows threading close to the bottom of through holes
• Lightweight at 0.31 pounds for easy handling during bench or field tapping operations
• Minimum order quantity of 1 for flexible purchasing

Compatibility

Designed as a general-purpose hand plug tap for 9/16-12 UNC threaded holes in standard metalworking and mechanical maintenance applications.

Installation Notes

A licensed machinist or qualified maintenance technician should perform hand tapping operations. Before tapping, ensure the pilot hole is drilled to the correct tap drill diameter for a 9/16-12 UNC thread and that the workpiece is securely clamped. Use cutting fluid appropriate for the workpiece material to extend tap life and improve thread quality. Back the tap off periodically to break chips and prevent binding or breakage.

Technical Specifications

• Thread Size: 9/16-12 UNC
• Thread Standard: Unified National Coarse (UNC)
• Tap Style: Hand Plug
• Material: High-Speed Steel (HSS)
• Weight: 0.31 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-5625-12-P-I