Hertel K008466AS25 Spiral Point Tap 3/8-24 Unf Tin

Product Description

The HERTEL K008466AS25 is a spiral point plug tap designed for threading 3/8-24 UNF right-hand threads in through-hole applications. Manufactured from high-speed steel with a TiN (titanium nitride) coating, this tap offers improved wear resistance and extended tool life compared to uncoated alternatives. It features 3 flutes and a plug chamfer, which distributes the cutting load across several leading threads for smoother entry and consistent thread form. The H2 thread limit provides close tolerance control suitable for standard UNF fastener fits. Licensed machinists, tool-and-die workers, and maintenance technicians install this type of tap using a tap wrench or CNC tapping attachment.

This tap is suited for production and maintenance threading operations where 3/8-24 UNF threads are required in through-hole workpieces. The spiral point design pushes chips forward ahead of the tap, making it effective in through-hole configurations across a range of ferrous and non-ferrous materials. It is commonly used in general machining, assembly fixtures, and mechanical repair work requiring fine-thread UNF fastener compatibility.

Key Features

• 3/8-24 UNF thread form with right-hand cutting direction
• Plug chamfer for gradual thread engagement in through-hole applications
• 3-flute spiral point geometry pushes chips forward to reduce clogging
• High-speed steel construction provides durability across common workpiece materials
• TiN coating increases surface hardness and reduces friction for longer tool life
• H2 thread limit for close-tolerance UNF thread control

Compatibility

Designed as an OEM-style replacement or direct substitute for 3/8-24 UNF spiral point plug taps in standard hand or machine tapping applications requiring H2 thread limit and TiN-coated high-speed steel construction.

Installation Notes

This tap should be installed and operated by qualified machinists or maintenance technicians familiar with threading operations. Always secure the workpiece and use appropriate cutting fluid for the material being tapped. Ensure the spindle or tap wrench is properly aligned with the hole axis before engaging to avoid tap breakage or thread damage. Follow applicable shop safety procedures and disconnect power to any machine tool before changing tooling.