Value Collection JY8962615 1/4-28 Unf Spiral Point Tap Hss

Product Description

The VALUE COLLECTION JY8962615 is a spiral point plug tap designed for cutting internal threads in through-hole applications. Built from high speed steel (HSS) with a bright, uncoated finish, this tap is suited for general-purpose threading in a wide range of workpiece materials. It cuts a 1/4-28 UNF right-hand thread and features 2 flutes that push chips forward ahead of the cut, reducing clogging in through-hole work. The H11 thread limit indicates a slightly oversize ground tolerance, accommodating plated or coated threads where the finished hole requires a tighter fit after post-processing.

This tap is used in manufacturing, maintenance, and repair applications wherever a 1/4-28 UNF thread is required in through-hole configurations. The plug chamfer — typically 3 to 5 threads of lead — makes it the standard choice for general threading where the tool can pass fully through the material. It is appropriate for use in hand tapping or low-speed machine tapping setups. Machinists, tool-and-die technicians, and maintenance professionals regularly use this type of tap for fastener repair and fabrication work.

Key Features

• 1/4-28 UNF right-hand thread form for standard unified fine thread applications
• 2-flute spiral point design pushes chips forward, ideal for through-hole threading
• Plug chamfer provides a moderate lead for easy thread starting in most applications
• High speed steel construction offers durability across a broad range of common materials
• H11 thread limit ground oversize at 0.0050 inches to allow for plating or coating after threading
• Bright, uncoated finish suitable for use with standard cutting fluids

Compatibility

Designed as a standard replacement or general-use spiral point tap for any application requiring a 1/4-28 UNF right-hand internal thread in through-hole workpieces.

Installation Notes

This tap should be installed in a tap wrench or machine tap holder appropriate for the shank size before use. Always apply a suitable cutting fluid for the workpiece material to reduce friction and extend tool life. Ensure the workpiece is secured and the tap is aligned square to the hole before beginning the threading operation. Reverse the tap periodically when hand tapping to break chips and prevent tap breakage.