Eagle Cutting Tool HT-540-T-D Hss Hand Taper Tap 5-40

Product Description

The EAGLE CUTTING TOOL HT-540-T-D is a high-speed steel hand taper tap ground to cut 5-40 UNC threads. A taper tap features a gradual chamfer along the first 8 to 10 threads, which distributes cutting force progressively and makes it the preferred starting tap for threading new holes by hand or under machine power at low feed rates. This tap is manufactured in the USA and is suited for use by machinists, pipefitters, electricians, and maintenance technicians who need a reliable threading tool for small-diameter fastener work in metal, plastic, and similar materials.

The HT-540-T-D is intended for hand tapping applications where a 5-40 thread form is required. The 5-40 designation indicates a No. 5 screw size with 40 threads per inch, a thread commonly encountered in instrument panels, electrical enclosures, light hardware, and small mechanical assemblies. This tap is appropriate for both production and maintenance threading tasks in shop, field, and service environments.

Key Features

• High-speed steel construction provides hardness and wear resistance for threading ferrous and non-ferrous materials
• Taper chamfer on leading threads distributes cutting load and eases thread entry in blind or through holes
• 5-40 UNC thread form for small-diameter fastener applications
• USA manufactured
• Lightweight at 0.04 pounds, suitable for handheld tap wrench use

Compatibility

Designed as an OEM-style replacement or standard hand tap for use with any tap wrench or tapping fixture that accepts standard straight-shank taps in the No. 5 size range.

Installation Notes

Taps are installed by machinists and maintenance technicians using a tap wrench or appropriate tapping fixture. Always drill the correct tap drill size for 5-40 UNC threads before beginning the tapping operation and ensure the workpiece is securely clamped. Apply cutting fluid appropriate for the workpiece material to reduce heat and extend tap life. Back off the tap periodically to break chips and prevent tap breakage, especially in blind holes.

Technical Specifications

• Thread Size: 5-40 UNC
• Tap Type: Hand Taper Tap
• Material: High-Speed Steel (HSS)
• Country of Origin: USA
• Weight: 0.04 pounds

Standard Information

• Brand: EAGLE CUTTING TOOL
• Manufacturer Part Number: HT-540-T-D