Balax 12092-91C Thread Forming Tap 10-24 Unc Bottoming Ticn

Product Description

The BALAX 12092-91C is a bottoming-style thread forming tap designed for 10-24 UNC right-hand threads in steel and similar ferrous materials. Built from powdered metal high-speed steel (PM-HSS) and finished with a TiCN coating, this tap handles blind hole threading where a full chamfer length would leave insufficient thread depth. The 2B class of fit and H5 thread limit give machinists and tool-room technicians a controlled, reliable thread form without cutting chips. The single oil groove aids lubricant delivery during the forming process, reducing galling risk in tighter bores.

The 12092-91C is suited for production and maintenance applications where blind holes in steel components require clean, chip-free 10-24 UNC internal threads. Thread forming taps like this one are preferred over cutting taps in steels with adequate ductility because the cold-working action strengthens the thread form. This tap is appropriate for use in CNC tapping centers, drill presses, and manual tapping operations where a bottoming chamfer is required to thread close to the bottom of a blind hole.

Key Features

• Bottoming chamfer with 2.5 chamfered threads for threading to the bottom of blind holes
• Powdered metal high-speed steel construction for improved wear resistance over standard HSS
• TiCN coating reduces friction and extends tool life in steel applications
• H5 thread limit with 2B class of fit for consistent, controlled thread tolerance
• Single oil groove for lubricant delivery during forming
• Chip-free thread forming process strengthens the thread form in ductile steels

Compatibility

Designed for blind hole threading in steel materials per the BXSTEEL series designation. Suitable for 10-24 UNC tapping applications requiring a 2B class of fit and bottoming chamfer profile.

Installation Notes

Thread forming taps must be used with an appropriate tapping fluid or cutting oil rated for the workpiece material - do not run dry. Ensure the tap is aligned perpendicular to the workpiece before engagement to prevent thread distortion or tap breakage. Consult the machine manufacturer guidelines for spindle speed and feed rate when using in CNC or power tapping equipment. Always secure the workpiece firmly before tapping operations.