Guhring 9044022025150 Spiral Point Tap 3-48 Unc Cobalt

Product Description

The GUHRING 9044022025150 is a spiral point plug tap designed for through-hole threading in a wide range of ferrous and non-ferrous metals. Built from cobalt high-speed steel with an oxide coating, it delivers enhanced heat resistance and wear life compared to standard HSS taps. The tap runs a 3-48 UNC thread form with a right-hand cut, 3 flutes, an H2 thread limit, and a 2B/3B class of fit. Overall length is 1.811 inches with a 0.5-inch thread length. Licensed HVAC techs, machinists, and maintenance trades reaching for a small-diameter production tap will find this suited to both manual and CNC applications.

This tap is intended for through-hole threading operations in materials including aluminum, aluminum alloy, free-cutting steel, structural steel, heat-treatable steel, case-hardened steel, stainless steel, cast iron, sulfured steel, and tool steel. The plug chamfer provides a gradual lead-in, making it well suited to production environments where the tap enters a pre-drilled through hole and chips are pushed ahead of the cutting edge rather than backed out. The shank diameter of 0.141 inches is sized for standard tap holders and collet chucks in that range.

Key Features

• Cobalt HSS construction for improved heat resistance in tough materials including stainless and tool steel
• Oxide coating reduces friction and extends tool life in production threading
• Plug chamfer geometry for smooth entry into through holes
• H2 thread limit and 2B/3B class of fit for precise, standard-tolerance threads
• Right-hand spiral point pushes chips forward, keeping the flutes clear during through-hole operations
• 3 flutes provide a balance of chip clearance and cutting edge strength at this small diameter

Compatibility

Designed as an OEM-style replacement or direct-use spiral point tap for 3-48 UNC through-hole threading applications across aluminum, ferrous, and stainless workpieces in Series 4402.

Installation Notes

Installation and use of this tap should be performed by a qualified machinist or maintenance tradesperson familiar with small-diameter tapping procedures. Always ensure the workpiece is securely fixtured and the tap is properly aligned with the pre-drilled hole before applying torque to avoid tap breakage at this small diameter. Use an appropriate cutting fluid or tapping compound for the workpiece material, particularly when threading stainless or hardened steels. Power down any CNC or tapping machine before changing or inspecting tooling.