Eagle Cutting Tool HT-20000-4.5-B-I Hss Hand Bottom Tap

Product Description

The EAGLE CUTTING TOOL HT-20000-4.5-B-I is a high-speed steel (HSS) hand bottom tap designed for threading operations that require cutting threads to the bottom of a blind hole. Bottom taps have a chamfer on only 1 to 2 threads, allowing the tap to cut full threads as close to the bottom of a hole as possible. This tool is intended for manual tapping applications and is sized for 2-4.5 inch thread work. It is a standard import-grade tool suited for machine shops, maintenance trades, and fabrication environments where bottom-thread finishing is required.

This bottom tap is used in applications where a plug or taper tap has already started the thread and a full thread depth at the base of a blind hole is needed. It is appropriate for use in metalworking and general fabrication settings, including both production and maintenance-repair contexts. Tradespeople working with steel, iron, aluminum, and similar materials in industrial or shop environments will find this tap suited to manual hand tapping operations.

Key Features

• High-speed steel (HSS) construction for durability across common metals
• Bottom-tap geometry with minimal chamfer for threading to the base of blind holes
• Sized for 2-4.5 inch thread applications
• Designed for hand tapping use with a standard tap wrench
• Import-grade pricing suitable for general-purpose shop use

Compatibility

Designed as an OEM-style replacement or standard-service hand bottom tap for manual threading operations in metalworking and general fabrication applications requiring 2-4.5 inch thread sizing.

Installation Notes

Bottom taps are used by machinists and fabricators as the final step in a three-tap sequence after a taper and plug tap have established the thread. Always secure the workpiece and use appropriate cutting fluid to reduce heat and extend tap life. Apply steady, even pressure and back off periodically to break chips and prevent tap breakage. Never force a tap against resistance, as HSS taps are brittle and susceptible to fracture under torque overload.

Technical Specifications

• Material: High-Speed Steel (HSS)
• Tap Type: Hand Bottom Tap
• Thread Size: 2-4.5 inches
• Weight: 0.31 pounds
• Minimum Order Quantity: 1

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-20000-4.5-B-I