Hertel K008203AS25 Spiral Point Tap 8-32 Unc Tin Hss

Product Description

The HERTEL K008203AS25 is a spiral point tap designed for cutting 8-32 UNC internal threads in through-hole applications. Built from high-speed steel (HSS) with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction compared to uncoated taps. The plug chamfer allows the tap to start cleanly in a pre-drilled hole, and the spiral point geometry pushes chips forward ahead of the cutting action to keep the flutes clear. This tap is sized for use in machine tapping operations and is a standard choice for machinists and maintenance technicians working with 8-32 fastener threads.

This tap is suited for through-hole tapping in ferrous and non-ferrous metals, plastics, and similar materials where 8-32 UNC threads are required. The right-hand thread direction and 3B class of fit make it compatible with standard 8-32 fastener assemblies used across general manufacturing, maintenance and repair, and light fabrication applications. It does not support coolant-through delivery, so external lubrication should be applied at the cutting zone during use.

Key Features

• 8-32 UNC thread form with 3B class of fit for standard fastener compatibility
• High-speed steel construction provides toughness across a broad range of workpiece materials
• TiN coating increases surface hardness and reduces tool wear
• Spiral point geometry pushes chips forward, ideal for through-hole tapping
• Plug chamfer for easy starting in pre-drilled through holes
• H2 thread limit for consistent fit within standard 3B tolerance range

Compatibility

Designed as a standard replacement or production spiral point tap for 8-32 UNC through-hole tapping operations in machine or hand tapping setups requiring a 3B class of fit.

Installation Notes

This tap should be installed in a tap holder or tapping chuck that provides axial float to prevent thread distortion. Always ensure the workpiece is securely fixtured and the pilot hole is drilled to the correct tap drill diameter for 8-32 UNC before tapping. Apply cutting fluid or tapping compound to the cutting zone throughout the operation, as this tap does not support coolant-through delivery. Reverse the tap periodically to break chips and prevent binding in harder materials.