Eagle Cutting Tool HT-10000-8-P-D 1-8 Hss Hand Plug Tap

Product Description

The EAGLE CUTTING TOOL HT-10000-8-P-D is a 1-8 UNC high-speed steel (HSS) hand plug tap manufactured in the USA. Plug taps feature a chamfer on the first 3 to 5 threads, making them the standard choice for general-purpose through-hole and moderately deep blind-hole threading applications. This tap is driven by hand with a tap wrench and is suited for cutting internal threads in steel, iron, aluminum, and similar workpiece materials. Machinists, pipefitters, and maintenance technicians reach for a plug tap as the go-to starting point in most hand-tapping operations where full thread engagement depth is required.

The HT-10000-8-P-D is intended for manual threading of 1-inch diameter holes at 8 threads per inch (UNC coarse pitch). It is commonly used in structural fabrication, heavy equipment maintenance, industrial repair, and general machining where large-diameter internal threads must be cut or restored by hand. The coarse UNC thread form is widely specified in bolted assemblies across construction, agricultural, and industrial equipment sectors.

Key Features

• 1-8 UNC coarse thread form for large-diameter hand-tapping applications
• High-speed steel (HSS) construction provides hardness and wear resistance across a range of workpiece materials
• Plug chamfer (3 to 5 thread lead) suited for through holes and most blind-hole applications
• USA manufactured for consistent dimensional accuracy and thread form compliance
• Minimum order quantity of 1 — available as a single unit

Compatibility

Designed as a standard replacement or stock hand plug tap for any application requiring a 1-8 UNC internal thread, compatible with standard 1-8 UNC tap wrenches and holders.

Installation Notes

Hand plug taps are installed by machinists or maintenance technicians using a properly sized tap wrench. Secure the workpiece firmly before tapping and ensure the tap is started square to the hole to prevent thread cross-threading or tap breakage. Apply appropriate cutting fluid for the workpiece material to reduce friction and extend tap life. Back off the tap periodically during cutting to break chips, particularly in deeper holes.

Technical Specifications

• Thread Size: 1-8 UNC
• Tap Type: Hand Plug Tap
• Material: High-Speed Steel (HSS)
• Country of Origin: USA
• Weight: 1.78 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-10000-8-P-D