Hertel K008264AS Bottoming Hand Tap 10-32 Unf Hss

Product Description

The HERTEL K008264AS is a straight-flute hand tap designed for cutting 10-32 UNF internal threads in a bottoming configuration. It is manufactured from high speed steel with a bright, uncoated finish. The tap produces a right-hand thread and is ground to a Class 3B fit with an H2 thread limit, making it suitable for close-tolerance threaded holes. With 3 flutes and a bottoming chamfer, it threads to the bottom of a blind hole with minimal runout. Overall length is 2.375 inches with a thread length of 0.875 inches. Machinists and maintenance technicians use this tap in hand-tapping operations or with a tapping fixture.

This tap is intended for use in through-holes and blind holes requiring a 10-32 UNF thread that runs to the bottom of the hole. The bottoming chamfer style - typically 1 to 2 threads of lead - allows threading closer to the bottom of a blind bore than a plug or taper tap permits. It is commonly used in light manufacturing, machine maintenance, and toolroom applications where fine-thread fasteners are standard. The high speed steel construction handles a broad range of workpiece materials including mild steel, aluminum, brass, and similar machinable metals.

Key Features

• Bottoming chamfer allows threading to the bottom of blind holes
• 3-flute straight-flute design for hand-tapping and fixture use
• High speed steel construction for durability across common machinable metals
• Bright, uncoated finish with no added coating to alter tap geometry
• Class 3B fit with H2 thread limit for close-tolerance 10-32 UNF threads
• Right-hand thread direction, standard UNF thread form

Compatibility

Designed as a standard replacement or stock hand tap for any application requiring a 10-32 UNF bottoming tap with a 3B Class of Fit and H2 thread limit.

Installation Notes

This tap is installed by machinists and toolroom technicians using a standard tap wrench or tapping fixture. Secure the workpiece before tapping and apply appropriate cutting fluid for the workpiece material to extend tap life and reduce galling. Back the tap off periodically to break chips, especially in blind holes. Inspect the tap for wear or chipping before each use and do not force a worn tap - doing so risks tap breakage and hole damage.