Value Collection MSC-04477139 Tap Set 3/4-10 Unc Hss

Product Description

The VALUE COLLECTION MSC-04477139 is a 3-piece tap set designed for cutting 3/4-10 UNC internal threads in metal workpieces. The set is machined from high-speed steel (HSS) and features a bright, uncoated finish. Each tap measures 4.25 inches overall length with a 2-inch thread length and a 4-flute cutting geometry. The H3 thread limit designation means the taps are ground to a tolerance suitable for general-purpose machine threading applications. This set is suited for machinists, maintenance technicians, and toolroom professionals working on ferrous and non-ferrous materials.

This tap set is used in production and maintenance environments where 3/4-10 UNC threaded holes are required. The right-hand thread direction is standard for the vast majority of fastener applications. The 4-flute configuration provides good chip control and surface finish in through-hole and blind-hole operations on materials such as mild steel, aluminum, and cast iron. The set typically includes a taper, plug, and bottoming tap to handle full threading sequences from initial entry to finished depth.

Key Features

• High-speed steel construction provides hardness and wear resistance for threading ferrous and non-ferrous metals
• 4-flute design supports chip evacuation and consistent thread form
• H3 thread limit ground tolerance suits general-purpose UNC threading
• Bright uncoated finish is compatible with a wide range of cutting fluids
• Right-hand thread direction matches standard fastener configurations
• 3-piece set covers taper, plug, and bottoming tap sequences

Compatibility

Designed for use in standard tap holders, T-handle tap wrenches, and machine tap chucks sized for 3/4-10 UNC taps. Suitable for hand tapping and low-speed machine tapping operations.

Installation Notes

Tap installation should be performed by a qualified machinist or maintenance technician. Always secure the workpiece firmly and use the correct tap drill size for 3/4-10 UNC threads before beginning the threading operation. Apply an appropriate cutting fluid throughout the process to reduce heat and extend tool life. Begin with the taper tap to start the thread, progress to the plug tap, and use the bottoming tap only when threading to the bottom of a blind hole.