Balax 11644-000 Thread Forming Tap 8-32 Unc Plug Hss

Product Description

The BALAX 11644-000 is a thread forming tap designed for through-hole threading applications in 8-32 UNC at a 3B class of fit. Built from high-speed steel with a bright uncoated finish, this plug-style tap belongs to the BXP series and carries a H4 thread limit. It features a 4-thread plug chamfer and a single oil groove to aid material flow during the cold-forming process. At 2.125 inches overall length with a shank diameter of 0.168 inches, it is sized for standard tapping chucks and holders used in production and maintenance environments. Licensed machinists, toolmakers, and maintenance technicians install this tap in ferrous and non-ferrous materials where chip-free threading is required.

This tap is suited for through-hole threading in materials that flow well under cold-forming pressure, such as low-carbon steel, aluminum, and certain plastics. The plug chamfer makes it appropriate for threading through holes where the tap can pass completely through the workpiece. The BXP series design is commonly used in both production machining environments and field maintenance settings where clean, strong threads are needed without chip generation.

Key Features

• Thread size 8-32 UNC with 3B class of fit and H4 thread limit for consistent tolerance
• Plug chamfer with 4-thread lead for through-hole threading applications
• High-speed steel construction for durability across a range of workpiece materials
• Bright uncoated finish suitable for use with standard tapping fluids and cutting oils
• Single oil groove aids lubrication flow during the forming process
• Right-hand thread direction, no coolant-through requirement

Compatibility

Designed as an OEM-style replacement or direct-use thread forming tap for through-hole applications requiring 8-32 UNC right-hand threads at 3B class of fit.

Installation Notes

Thread forming taps are installed by machinists and maintenance technicians using a tapping chuck, tap wrench, or CNC tapping head. Power down and secure the workpiece fully before tapping. Apply appropriate tapping fluid or cutting oil to the tap before use. Do not use thread forming taps in blind holes without confirming adequate material ductility, as these taps displace rather than cut material.