Guhring 9039100041660 Spiral Flute Tap 8-32 Unc Tin

Product Description

The GUHRING 9039100041660 is a spiral flute tap designed for blind hole threading in demanding materials including aerospace alloys and stainless steel. Built from powdered metal with a TiN (titanium nitride) coating, it delivers extended tool life and reduced friction in hard-to-machine applications. The modified bottoming chamfer allows threading close to the bottom of blind holes. With a 40-degree helix angle and fast flute style, chips are efficiently evacuated up and out of the hole during tapping. This tap is sized 8-32 UNC with a 2B class of fit and three right-hand flutes, making it a precise, production-grade tool for machine shops, aerospace fabricators, and precision manufacturing environments.

This tap is suited for blind hole threading operations in aerospace alloys and stainless steel. The modified bottoming chamfer and fast spiral flute geometry make it appropriate for CNC tapping centers and rigid tapping setups where chip control and thread accuracy are critical. The H3 and H4 thread limits accommodate standard 2B tolerance threading requirements. It is used by machinists and toolroom technicians working in aerospace, defense, and precision manufacturing sectors where material toughness demands a high-performance tap geometry.

Key Features

• Modified bottoming chamfer for threading close to the bottom of blind holes
• 40-degree helix angle with fast flute style for efficient chip evacuation
• TiN coating reduces friction and extends tool life in tough materials
• Powdered metal construction provides uniform hardness and wear resistance
• H3 and H4 thread limits support 2B class of fit precision threading
• Right-hand flute and right-hand thread, no coolant-through requirement

Compatibility

Designed for blind hole threading in aerospace alloys and stainless steel. Suitable for use in CNC machining centers and rigid tapping applications requiring 8-32 UNC, 2B class of fit threads with H3 or H4 thread limits.

Installation Notes

This tap is installed and operated by qualified machinists using CNC tapping centers or drill presses equipped for rigid tapping. Always ensure the spindle and workpiece are properly secured before beginning the tapping cycle. Use an appropriate cutting fluid or tapping compound compatible with the workpiece material to protect the coating and extend tool life. Do not reverse direction manually while the tap is engaged in the hole.