Eagle Cutting Tool HT-17500-8-T-I Hss Hand Taper Tap

Product Description

The EAGLE CUTTING TOOL HT-17500-8-T-I is a high-speed steel (HSS) hand taper tap designed for cutting internal threads in metal workpieces. Sized at 1-3/4 inches in diameter with 8 threads per inch (TPI), this tap is used to start or cut full threads in through-holes and blind holes. The taper chamfer on the leading end distributes cutting load gradually, making it easier to start the tap straight and reduce the chance of breakage. Machinists, pipefitters, and maintenance technicians use taper taps when working on large-diameter fastener applications or threaded connections in heavy equipment and structural assemblies.

This tap is suited for threading operations in ferrous metals and softer alloys where a 1-3/4 in 8 TPI thread form is required. Common applications include industrial maintenance, equipment repair, fabrication shops, and field service work where large-diameter internal threads must be cut or restored by hand. The taper lead makes this tap the preferred first-pass tool in a multi-tap threading sequence.

Key Features

• High-speed steel (HSS) construction provides hardness and wear resistance for threading steel and iron
• 1-3/4 in diameter with 8 TPI thread pitch for large-diameter internal threading
• Taper chamfer distributes cutting forces gradually for easier thread starting
• Designed for hand-tapping operations using a tap wrench or adjustable tap handle
• Import-grade value suitable for production or general-purpose threading tasks

Compatibility

Designed as a general-purpose hand taper tap for applications requiring a 1-3/4 in 8 TPI thread form in compatible metallic materials.

Installation Notes

This tap is installed by hand using a properly sized tap wrench. Ensure the workpiece is securely clamped and the hole is drilled to the correct tap drill diameter before threading. Apply cutting fluid throughout the tapping operation to reduce heat and prolong tap life. Back the tap off periodically to break chips and clear the flutes, especially in deep or blind holes.

Technical Specifications

• Thread Diameter: 1-3/4 inches
• Threads Per Inch (TPI): 8
• Tap Style: Hand Taper
• Material: High-Speed Steel (HSS)
• Weight: 4.2 pounds

Standard Information

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