Value Collection JY4862058 Straight Flute Tap 1-1/8-8

Product Description

The VALUE COLLECTION JY4862058 is a straight flute plug tap designed for cutting 1-1/8-8 UNS right-hand internal threads in a range of workpiece materials. Built from high-speed steel with a bright uncoated finish, this tap delivers reliable thread-forming performance in general machining applications. The plug chamfer style — typically 3 to 5 threads of lead — makes it suitable for through-hole threading and most standard tapping operations. With 4 flutes and an H5 thread limit, it holds tight tolerances appropriate for precision threading work. Overall length is 5-7/16 inches with a thread length of 2-9/16 inches.

This tap is used in machine shop and maintenance environments where UNS (Unified National Special) threads are specified. The 1-1/8-8 thread designation indicates a 1-1/8 inch nominal diameter with 8 threads per inch, a coarse-pitch UNS configuration commonly encountered in heavy industrial fastener and mechanical assembly work. It is appropriate for use in drill press, CNC, or hand-tapping operations. Machinists, tool-and-die makers, and maintenance technicians are the primary users of this type of tooling.

Key Features

• 1-1/8-8 UNS thread form with right-hand direction
• Plug chamfer for through-hole and standard tapping applications
• High-speed steel construction for durability across common workpiece materials
• 4 straight flutes with H5 thread limit for consistent tolerance control
• Bright uncoated finish — no coating buildup to affect thread dimensions
• Overall length of 5-7/16 inches with 2-9/16 inches of thread length

Compatibility

Designed as a standard replacement or production tap for applications requiring 1-1/8-8 UNS right-hand internal threads in through-hole tapping setups.

Installation Notes

Install and operate this tap with appropriate cutting fluid for the workpiece material to reduce friction and extend tool life. Ensure the tap is properly aligned with the drilled hole before engagement to prevent tap breakage or thread damage. Power down and secure the workpiece before beginning any tapping operation. Follow applicable machine shop safety standards and toolholder manufacturer recommendations for speed and feed settings.