Value Collection JY4872248 Hand Tap 1-3/8-24 Uns Plug

Product Description

The VALUE COLLECTION JY4872248 is a 6-flute straight-flute hand tap designed for cutting 1-3/8-24 UNS internal threads in through-hole and blind-hole applications. Manufactured from high speed steel with a bright, uncoated finish, this tap delivers reliable thread-cutting performance in ferrous and non-ferrous metals where hand tapping is required. The plug chamfer style — with a moderate lead-in of approximately 3 to 5 threads — makes it suitable for most general-purpose through-hole work. Thread fit is held to Class 3B tolerance at an H4 thread limit, providing a close-tolerance fit appropriate for precision assemblies. Overall length is 4 inches.

This tap is used in machine shops, maintenance and repair operations, and field service environments where 1-3/8-24 UNS threads must be cut or restored by hand. The UNS thread standard indicates a Unified National Special pitch, making this tap appropriate for non-standard pitch applications that fall outside the common UNC and UNF series. It is installed by machinists and skilled trade professionals using a standard tap wrench. Right-hand threading direction requires standard clockwise rotation during cutting.

Key Features

• 1-3/8-24 UNS thread size with right-hand cutting direction
• Plug chamfer provides a moderate lead-in for general through-hole tapping
• 6-flute design for improved chip distribution and thread finish
• High speed steel construction for durability across a range of workpiece materials
• Bright, uncoated finish — compatible with most cutting fluids
• Class 3B fit at H4 thread limit for close-tolerance thread production

Compatibility

Designed for hand tapping 1-3/8-24 UNS threaded holes in applications requiring a Class 3B, H4 thread limit fit. Suitable for use with a standard tap wrench in through-hole configurations.

Installation Notes

This tap is intended for use by machinists or trade professionals with appropriate thread-cutting experience. Always ensure the workpiece is securely fixtured and apply a suitable cutting fluid for the workpiece material before beginning the tapping operation. Back the tap out periodically to clear chips and prevent tap breakage, especially in deeper holes. Do not apply excessive torque; high speed steel taps can fracture if forced.