Accupro 11965-01T Thread Forming Tap 10-24 Unc Bottoming

Product Description

The ACCUPRO 11965-01T is a bottoming-chamfer thread forming tap designed for 10-24 UNC right-hand threads in blind hole applications. Built from powdered metal high-speed steel and coated with titanium nitride (TiN), it delivers extended tool life and reduced friction during the forming process. With an overall length of 2.375 inches, a thread length of 0.600 inches, and a tapping depth capacity of 0.875 inches, this tap is suited for close-tolerance work requiring Class 2B and 3B fits at an H5 thread limit. Machinists and tool-and-die professionals use it where thread integrity and dimensional consistency matter most.

This tap is intended for blind hole threading in materials compatible with thread forming operations, where cutting is replaced by cold-forming to produce stronger threads without chips. The bottoming chamfer — approximately 2.5 threads — allows threading close to the bottom of a blind hole. It is a standard choice in production machining, maintenance and repair operations, and precision fabrication environments handling 10-24 UNC fastener specifications.

Key Features

• Bottoming chamfer with approximately 2.5 chamfered threads for threading near the bottom of blind holes
• Powdered metal high-speed steel construction for improved wear resistance over conventional HSS
• Titanium nitride (TiN) coating reduces friction and extends tool life
• H5 thread limit with Class 2B and 3B fit compatibility for close-tolerance applications
• Single oil groove design aids lubrication during the forming cycle
• Right-hand thread direction, 10-24 UNC standard

Compatibility

Designed as an OEM-style replacement or direct-use thread forming tap for blind hole applications requiring a 10-24 UNC bottoming tap with H5 thread limit and Class 2B or 3B fit.

Installation Notes

Thread forming taps should be installed and operated by qualified machinists familiar with tapping speeds, proper lubrication requirements, and blind hole depth calculations. Always confirm the correct tap drill size for the intended material and class of fit before beginning. Ensure the workpiece is securely fixtured and that appropriate cutting or forming fluid is applied. Never reverse a forming tap under power without confirming the machine is programmed for rigid tapping reversal.