Eagle Cutting Tool HT-17500-8-P-I Hss Hand Plug Tap 1-3/4in 8TPI

Product Description

The EAGLE CUTTING TOOL HT-17500-8-P-I is a high-speed steel (HSS) hand plug tap sized at 1-3/4 inches with an 8 threads-per-inch (TPI) pitch. Plug taps feature a chamfer on the first 3 to 5 threads, making them suited for threading through holes and most standard tapping operations where the tap can be started and advanced through material. This tap is manufactured as an import-grade tool, offering a practical option for general threading tasks in a shop or field setting. At 4.2 pounds, it is a substantial tap intended for use with a tap wrench or appropriate tapping equipment.

This tap is used in metalworking, maintenance, and repair applications where large-diameter internal threads are required. The 1-3/4 inch-8 thread form is a coarse-pitch, large-diameter designation commonly found in heavy industrial machinery, structural fasteners, and large pipe or pressure fittings. Machinists, millwrights, and maintenance technicians typically reach for this size when reworking or creating new threads in heavy plate, castings, or large-diameter workpieces. It is suitable for hand tapping in a range of metals depending on cutting conditions and lubrication.

Key Features

• High-speed steel (HSS) construction for durability across a range of workpiece materials
• Plug chamfer style — 3 to 5 thread lead — suitable for through holes and general-purpose hand tapping
• 1-3/4 inch diameter, 8 TPI coarse-pitch thread form for heavy industrial applications
• Import-grade tool providing a cost-effective option for standard threading jobs
• 4.2 pound weight indicates substantial body size appropriate for this large-diameter tap

Compatibility

Designed for use in standard 1-3/4 inch-8 threaded applications; compatible with tap wrenches and tapping fixtures sized for large-diameter hand taps.

Installation Notes

This tap is installed by hand using a properly sized tap wrench — power tapping equipment is not recommended without appropriate speed and torque controls for a tap of this diameter. Secure the workpiece firmly before starting and apply a suitable cutting fluid to reduce friction and heat buildup. Advance the tap in short increments, backing off periodically to break chips and clear the flutes. Always inspect the tap and pilot hole for alignment before applying force to prevent tap breakage.

Technical Specifications

• Thread Size: 1-3/4 inch
• Threads Per Inch (TPI): 8
• Tap Style: Hand Plug
• Material: High-Speed Steel (HSS)
• Grade: Import
• Weight: 4.2 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-17500-8-P-I