Emuge BU591410.5006 Thread Forming Tap 8-32 Unc Bottoming Tin

Product Description

The EMUGE BU591410.5006 is a thread forming tap designed for 8-32 UNC internal threads in blind hole applications. It is manufactured from High-Speed Steel-E (HSS-E), a cobalt-bearing grade that resists heat buildup during forming operations, and carries a Titanium Nitride (TiN) coating to extend tool life and reduce friction. With a bottoming chamfer of 1.5 to 2 threads, this tap can form threads close to the bottom of a blind hole. The 3BX class of fit and H9 thread limit produce threads suitable for precision fastener engagement in steel, stainless steel, and non-ferrous metal workpieces. Licensed machinists, toolroom technicians, and CNC operators are the primary installers of this tap.

This tap is built for blind hole threading in production and job-shop environments where chipless thread forming is preferred over cutting. The InnoForm 1-MULTI/E-SN-TiN series is suited for use in steel and stainless steel components as well as non-ferrous metals, covering material application codes P, M, and N. Its 3xD flute-by-diameter ratio supports a tapping depth up to 0.827 inches, making it appropriate for through-hole prepped blind holes in sheet metal brackets, machine housings, and structural components where an 8-32 UNC thread is required.

Key Features

• HSS-E cobalt material provides heat and wear resistance in tough alloys including stainless steel
• TiN coating reduces friction and extends tool life in production tapping cycles
• Bottoming chamfer (1.5 to 2 threads) allows thread forming close to the base of blind holes
• Chipless thread forming process eliminates chip evacuation concerns in blind hole setups
• 3BX class of fit with H9 thread limit delivers consistent, precise thread geometry
• Right-hand thread direction, compatible with standard tapping attachments and CNC rigid tapping cycles

Compatibility

Designed for forming 8-32 UNC internal threads in steel, stainless steel, and non-ferrous metal workpieces. Suitable for use in blind hole applications where chip-free thread forming is required. Compatible with standard 8-32 UNC tapping chucks and rigid tapping setups.

Installation Notes

This tap should be installed by qualified machinists or CNC operators familiar with thread forming operations. Power down or lock out any machine before loading or unloading the tap from its holder. Thread forming requires a properly sized forming tap drill hole - use the manufacturer-recommended pilot drill diameter for 8-32 UNC forming taps to achieve the correct material displacement. Apply appropriate cutting fluid or tapping compound for the workpiece material; no coolant-through capability is present on this tool.