Guhring 9039980035050 Spiral Flute Tap 6-32 Unc Tin

Product Description

The GUHRING 9039980035050 is a spiral flute tap designed for blind hole threading in a 6-32 UNC thread size. Built from powdered metal with a titanium nitride (TiN) finish, it delivers consistent thread quality in demanding materials including stainless steel. The tap runs three right-hand flutes at a 40-degree helix angle, a geometry optimized for chip evacuation in blind holes. Overall length is 2 inches. The modified bottoming chamfer allows threading close to the bottom of a hole. This tap is sized and finished for professional threading operations where tool life and thread accuracy are critical.

This tap is suited for machine threading applications in blind holes across manufacturing, maintenance, and repair environments. The fast flute style and 40-degree helix angle are particularly effective when tapping ductile and work-hardening materials such as stainless steel. It carries a 3B class of fit, indicating a standard tolerance range appropriate for most mechanical fastener applications. The Series 3998 design is intended for use in CNC machining centers and rigid tapping setups where consistent torque control is maintained.

Key Features

• 6-32 UNC thread size with 32 threads per inch for fine-pitch blind hole applications
• Powdered metal construction for improved wear resistance over standard high-speed steel
• TiN coating reduces friction and extends tool life in stainless steel and similar alloys
• 40-degree right-hand helix promotes efficient chip ejection from blind holes
• Modified bottoming chamfer allows threading close to the bottom of a blind bore
• 3B class of fit meets standard tolerance requirements for most mechanical assemblies

Compatibility

Designed as an OEM-style threading tool for blind hole tapping operations requiring a 6-32 UNC thread form at a 3B class of fit.

Installation Notes

Installation is performed by machinists or maintenance technicians using rigid tapping attachments or CNC tapping cycles. Ensure the spindle speed and feed rate match the manufacturer recommendations for the workpiece material before beginning the tapping operation. Power down or stop the spindle completely before loading or removing the tap from the holder. Avoid reversing direction abruptly in manual setups to prevent tap breakage, particularly in harder alloys such as stainless steel.