Hertel K008468AS Spiral Point Tap 3/8-24 Unf Hss

Product Description

The HERTEL K008468AS is a spiral point tap designed for cutting internal threads in through-hole applications. It is manufactured from high speed steel with a bright finish and features a plug chamfer and three flutes. The spiral point geometry pushes chips forward ahead of the tap, making it well suited for through-hole threading operations in ferrous and non-ferrous materials. The 3/8-24 UNF thread form produces fine-pitch threads to Class 2B tolerance. Thread length is 1.25 inches, and the shank diameter is 0.381 inches. This tap is used by machinists, pipefitters, and maintenance tradespeople working in production and MRO environments.

This tap is intended for through-hole tapping of 3/8-24 UNF fine threads in materials such as steel, aluminum, and similar workpiece stock. The plug chamfer provides a gradual thread lead-in of approximately 3 to 5 threads, making it a general-purpose choice for through-hole tapping in manual and machine tapping setups. Right-hand thread direction matches standard fastener orientation. It is commonly used in light manufacturing, field maintenance, and shop repair applications where accurate fine-thread tapping is required.

Key Features

• Spiral point geometry pushes chips forward, reducing clogging in through-hole applications
• 3/8-24 UNF fine-pitch thread form, Class 2B fit, H4 thread limit
• High speed steel construction for general-purpose tapping in a range of materials
• Plug chamfer for gradual thread engagement and ease of starting
• Right-hand thread direction, no coolant-through requirement
• Bright finish with 0.381-inch shank diameter for standard tap holder compatibility

Compatibility

Designed as a standard replacement or stock tap for through-hole 3/8-24 UNF tapping applications in manual tap handles, tapping heads, and CNC machine tool holders accepting the 0.381-inch shank diameter.

Installation Notes

This tap is installed and operated by machinists or maintenance technicians using appropriate tap handles or machine tapping attachments. Ensure the workpiece is securely fixtured and the pilot hole diameter matches the recommended tap drill size for 3/8-24 UNF before beginning the operation. Apply a suitable cutting fluid to the tap and workpiece to reduce heat and extend tool life. Do not force the tap if resistance increases suddenly, as this may indicate chip buildup or misalignment.