Hertel K008245AS Spiral Point Tap 10-24 Unc Hss

Product Description

The HERTEL K008245AS is a spiral point tap designed for cutting internal threads in through-hole applications. Built from high-speed steel with a bright, uncoated finish, this tap produces clean 10-24 UNC threads and is well-suited for production tapping on CNC machining centers, drill presses, and manual tapping operations. The spiral point geometry pushes chips forward ahead of the cut, reducing chip clogging in through-hole work. It carries an H3 thread limit and conforms to 2B and 3B class of fit tolerances, making it appropriate for both standard and close-tolerance threaded assemblies. Right-hand thread direction and a 2-flute, plug chamfer configuration are standard for general-purpose through-hole tapping.

This tap is used in metalworking, fabrication, and maintenance applications where 10-24 UNC through-holes are required. The plug chamfer with 3 to 5 thread lead makes it suitable for starting in a hole and tapping through the full material thickness. It is commonly installed by machinists, toolroom technicians, and maintenance mechanics working with steel, aluminum, and other machinable metals. Coolant-through capability is not included, so conventional external flood or mist coolant should be applied at the cutting zone.

Key Features

• 10-24 UNC thread size for standard unified coarse thread production
• High-speed steel construction provides durability across a range of common machinable materials
• Spiral point geometry pushes chips forward, minimizing clogging in through-hole tapping
• H3 thread limit with 2B/3B class of fit for broad tolerance compatibility
• Plug chamfer allows easy entry and full-depth threading in through-hole applications
• Bright, uncoated finish suitable for general-purpose use with standard cutting fluids

Compatibility

Designed as a general-purpose replacement or production spiral point tap for 10-24 UNC through-hole tapping operations in standard CNC and manual machine tool setups.

Installation Notes

Install and secure the tap in a compatible tap holder or chuck rated for the machine type before beginning any threading operation. Ensure the workpiece is firmly clamped and the pilot hole diameter matches the recommended tap drill size for 10-24 UNC threads. Apply appropriate cutting fluid or coolant externally throughout the tapping cycle to extend tool life and improve thread quality. Never reverse or force a tap in a blind hole application for which this plug-chamfer tap is not intended.