Value Collection JY4863080 Straight Flute Tap Hss

Product Description

The VALUE COLLECTION JY4863080 is a straight flute tap designed for cutting 1-3/16-12 UNS internal threads in ferrous and non-ferrous materials. Built from high-speed steel (HSS) with a bright, uncoated finish, this tap delivers consistent thread form across a 1.5-inch thread length with a 4-inch overall length (OAL). The 6-flute configuration provides added support and stability during the tapping operation, reducing chatter and improving thread quality. A plug chamfer allows the tap to start easily in through-holes or blind holes with sufficient depth. Installed by machinists and maintenance professionals working with precision thread specifications.

This tap is suited for low-to-medium production threading operations where UNS (Unified National Special) thread forms are specified. The 1-3/16-12 thread size and H4 thread limit designation make it appropriate for close-tolerance work where precise fit between mating components is required. Typical applications include threaded bore repair, fixture fabrication, and component manufacturing in industrial, maintenance, and machine shop environments. Right-hand cutting direction matches standard threading practice for the vast majority of fastener and bore applications.

Key Features

• 1-3/16-12 UNS thread form with H4 thread limit for controlled tolerance fit
• 6 straight flutes for added support and chip clearance in through-hole applications
• Plug chamfer for straightforward entry in through-holes and adequate-depth blind holes
• High-speed steel construction for durability across a wide range of workpiece materials
• Bright, uncoated finish — ready to use as-received without additional surface prep
• Right-hand cutting direction; 1.5-inch thread length and 4-inch OAL

Compatibility

Designed as a standard replacement or new-installation tap for applications requiring a 1-3/16-12 UNS internal thread with an H4 thread limit in through-hole or blind-hole configurations.

Installation Notes

Tapping operations should be performed by qualified machinists or maintenance technicians using a properly aligned tap handle, tapping head, or CNC machine with synchronized feed. Always use appropriate cutting fluid for the workpiece material to extend tap life and improve thread finish. Secure the workpiece firmly before beginning and verify hole size is drilled to the correct tap drill diameter for the 1-3/16-12 UNS thread specification. Reverse the tap periodically during hand tapping to break and clear chips, preventing tap breakage in the bore.