Eagle Cutting Tool HT-5625-18-B-I 9/16-18 Hss Bottom Tap

Product Description

The EAGLE CUTTING TOOL HT-5625-18-B-I is a 9/16-18 high-speed steel (HSS) hand bottom tap designed for threading operations that require cutting threads to the bottom of a blind hole. This import-grade tap produces clean, accurate internal threads in a 9/16 inch diameter with 18 threads per inch (UNF fine thread pitch). It is used in metal fabrication, maintenance, and repair work where a bottoming chamfer is required to maximize thread engagement in shallow or blind holes. Machinists, millwrights, and general metalworkers are the primary users of this tool.

This bottom tap is suited for hand tapping applications in ferrous and non-ferrous metals, including steel, aluminum, and brass. The bottoming style features a short 1-2 thread chamfer, allowing threads to be cut as close to the bottom of a blind hole as possible. It is commonly used in manufacturing shops, machine repair facilities, and field maintenance settings where fine-thread fastener installations demand full thread depth in limited-depth holes.

Key Features

• 9/16-18 UNF thread form for fine-pitch internal threading
• High-speed steel (HSS) construction provides hardness and wear resistance for hand tapping operations
• Bottom tap chamfer style allows threading to the base of blind holes
• Hand tap design compatible with standard tap wrenches and T-handle drivers
• Lightweight at 0.31 pounds for easy single-hand use

Compatibility

Designed as an OEM-style replacement or standard supply tap for 9/16-18 UNF hand tapping applications. Compatible with standard tap wrench drive sizes appropriate for this tap diameter.

Installation Notes

This tap is intended for use by machinists, maintenance technicians, and metalworkers familiar with hand tapping procedures. Always ensure the workpiece is securely clamped before tapping. Use appropriate cutting fluid to reduce friction and extend tap life, and back off the tap periodically to break chips and prevent binding. Inspect the tap for wear or damage before each use, as a damaged tap can seize in the hole and cause workpiece damage.

Technical Specifications

• Thread Size: 9/16-18 UNF
• Tap Type: Hand Bottom Tap
• Material: High-Speed Steel (HSS)
• Weight: 0.31 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-5625-18-B-I