Eagle Cutting Tool HT-16250-8-T-I Hss Hand Taper Tap

Product Description

The EAGLE CUTTING TOOL HT-16250-8-T-I is a high-speed steel (HSS) hand taper tap sized 1-5/8 inches in diameter with 8 threads per inch (TPI). Taper taps are used to start threads in a hole, gradually cutting the thread profile over the first several flutes before reaching full thread depth. This tap is designed for hand threading operations and is suited for use in steel, iron, aluminum, and similar materials encountered in mechanical, plumbing, and industrial maintenance work. At 4.2 pounds, it has the mass expected of a large-diameter tap intended for heavy-duty threading tasks.

This tap is suited for applications requiring large-diameter internal threads, such as pipe fittings, flanges, industrial equipment housings, and heavy mechanical assemblies. The 1-5/8 inch, 8 TPI specification is common in heavy industrial and mechanical maintenance settings. It is typically used by machinists, millwrights, pipefitters, and maintenance technicians working on large equipment or structural threading jobs where a taper entry is needed to guide the tap squarely into the workpiece.

Key Features

• High-speed steel (HSS) construction for durability and heat resistance during hand tapping
• Taper tap geometry provides gradual thread engagement for easier starting in blind or through holes
• 1-5/8 inch diameter, 8 TPI specification for large-diameter threading applications
• Import-grade tap suitable for maintenance, repair, and lower-volume threading operations
• Weight of 4.2 pounds consistent with large-diameter, heavy-duty hand tap form factor

Compatibility

Designed as an OEM-style replacement or standard tooling option for hand tapping operations requiring a 1-5/8 inch, 8 TPI thread form in ferrous and non-ferrous metals.

Installation Notes

This tap is installed by hand using a tap wrench of appropriate size for the 1-5/8 inch shank. Before tapping, ensure the hole is drilled to the correct tap drill diameter for 8 TPI threads and that the workpiece is securely clamped. Apply cutting fluid throughout the threading process to reduce heat buildup and extend tap life. Back off the tap periodically to break chips and prevent tap breakage, especially in deeper holes.

Technical Specifications

• Thread Diameter: 1-5/8 inches
• Thread Pitch: 8 TPI
• Tap Type: Hand Taper
• Material: High-Speed Steel (HSS)
• Weight: 4.2 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-16250-8-T-I