Guhring 9039610158750 Spiral Point Tap 5/8-11 Unc

Product Description

The GUHRING 9039610158750 is a spiral point tap designed for through-hole threading in a wide range of workpiece materials. Built from cobalt high-speed steel with a MolyGlide finish, it delivers improved wear resistance and reduced friction during cutting. The plug chamfer style provides a gradual cutting action suited to machine tapping operations. With 3 flutes and a right-hand thread direction, this tap cuts a 5/8-11 UNC thread form to a 2B class of fit at H5/H6 tolerance limits. Overall length is 3.811 inches with a 0.48-inch shank diameter. Licensed HVAC techs, machinists, and toolroom professionals rely on this series for production and maintenance threading work.

This tap is applied in through-hole threading operations where the chip is pushed forward ahead of the tap rather than pulled back. It is suited to machine tapping on CNC machining centers, drill presses, and tapping heads. Compatible material applications include aluminum, gray cast iron, malleable iron, spheroidal iron, non-ferrous metals, and steel, making it a versatile choice for job shops and production environments handling mixed-material workloads. It belongs to the GUHRING Series 3961 product line.

Key Features

• 5/8-11 UNC thread form with 2B class of fit and H5/H6 thread limit for consistent tolerance control
• Cobalt construction provides elevated heat resistance for tapping harder steels and abrasive materials
• MolyGlide finish reduces cutting friction and extends tool life between resharpening cycles
• Plug chamfer distributes cutting load across multiple lead threads for smooth machine tapping entry
• 3-flute spiral point design pushes chips forward, keeping flutes clear in through-hole applications
• Right-hand cut, no coolant-through requirement — compatible with standard flood or mist coolant setups

Compatibility

Designed for through-hole threading in aluminum, gray cast iron, malleable iron, spheroidal iron, non-ferrous metals, and steel. Part of GUHRING Series 3961.

Installation Notes

This tap is installed and operated by machinists or toolroom technicians using a tapping head, CNC machine, or manual drill press equipped with appropriate tap holders. Power down and lock out the machine before mounting or removing the tap from the holder. Use appropriate cutting fluid or coolant for the workpiece material to prevent galling and premature wear. Verify spindle speed and feed rate against the manufacturer's tapping chart for the material being threaded before starting the operation.