Guhring 9048855190500 Spiral Point Tap 3/4-10 Unc

Product Description

The GUHRING 9048855190500 is a spiral point tap designed for right-hand through-hole threading in steel and similar materials. It cuts a 3/4-10 UNC thread profile with a plug chamfer lead, making it suitable for starting in pre-drilled through holes where chips can be pushed forward ahead of the tap. The tap is manufactured from HSS-E cobalt high-speed steel and finished with GUHRING Ignator coating, which improves surface hardness and wear resistance for extended tool life in production threading applications. With 4 flutes and a thread limit of H5/H6, it holds tight tolerances for 2B and 3B class-of-fit requirements.

This tap is intended for through-hole threading operations in steel workpieces, fitting standard CNC machining centers, tapping machines, and manual tap handles with appropriate drive. The spiral point design pushes chips forward through the hole rather than packing them in the flutes, reducing the risk of chip jamming in continuous production runs. It is appropriate for job shops, maintenance departments, and manufacturing facilities threading 3/4-10 UNC fastener holes in structural steel, mild steel, and similar materials.

Key Features

• 3/4-10 UNC thread form with plug chamfer for through-hole entry
• HSS-E cobalt base material for improved heat and wear resistance over standard HSS
• Ignator coating adds surface hardness and reduces friction during threading
• 4-flute spiral point geometry pushes chips forward, reducing clogging in through-hole applications
• H5/H6 thread limit holds 2B and 3B class-of-fit tolerances
• Right-hand cut, no coolant-through requirement

Compatibility

Designed for through-hole threading in steel applications as an OEM-specification tap in the GUHRING Series 4885 product line. Fits standard 3/4-inch tap holders and collet chucks compatible with a 0.59-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a properly sized tap holder or collet chuck. Ensure the workpiece is securely fixtured and the spindle is aligned perpendicular to the hole before engaging. Use appropriate cutting fluid or tapping compound recommended for the workpiece material to protect the coating and extend tap life. Always power down or de-energize any machine tool before changing tooling.