Hertel K008157AS25 Spiral Point Tap 6-32 Unc Tin Hss

Product Description

The HERTEL K008157AS25 is a spiral point tap designed for cutting right-hand internal threads in ferrous and non-ferrous materials. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it produces 6-32 UNC threads to a 2B class of fit with an H3 thread limit. The 2-flute, plug-chamfer geometry pushes chips forward ahead of the tap, making it well-suited for through-hole tapping applications. Overall length is 2.0 inches. This tap is used in production and maintenance environments where consistent thread quality and tool longevity are required.

This tap is appropriate for threading 6-32 UNC holes in light-gauge steel, aluminum, and similar materials in both production shop and field maintenance settings. The plug chamfer provides a gradual lead-in, making it a practical choice for general-purpose through-hole tapping on manual machines, CNC machining centers, and hand tap handles. It is not intended for blind-hole applications where a bottoming chamfer would be required.

Key Features

• 6-32 UNC thread form with 2B class of fit for standard fastener compatibility
• H3 thread limit for controlled tolerance in production tapping
• High-speed steel construction provides durability across a range of workpiece materials
• TiN coating reduces friction and extends tool life compared to uncoated HSS
• 2-flute spiral point geometry pushes chips forward, ideal for through-hole applications
• Right-hand thread direction for standard tapping operations

Compatibility

Designed as a direct-replacement or standard production spiral point tap for 6-32 UNC through-hole threading operations on manual tap handles, tapping heads, and CNC rigid-tapping setups that accept standard shank dimensions.

Installation Notes

A licensed machinist or qualified maintenance technician should verify proper drill size for the 6-32 UNC thread form before tapping. Use appropriate cutting fluid or tapping compound for the workpiece material to reduce tool wear and improve thread finish. Secure the workpiece firmly before operation and ensure the tap is aligned perpendicular to the hole to prevent tap breakage. Follow applicable shop safety procedures and machine guarding requirements during use.