Guhring 9044025158750 Spiral Point Tap 5/8-11 Unc

Product Description

The GUHRING 9044025158750 is a spiral point tap designed for through-hole threading in steel and similar ferrous materials. Part of the Series 4402 lineup, it cuts a 5/8-11 UNC right-hand thread to a 2B class of fit, delivering the dimensional accuracy that production and maintenance machinists require. The tap is manufactured from HSS-E cobalt high-speed steel for improved heat and wear resistance, and it carries a steam oxide coating that reduces friction and helps with chip evacuation. With 4 flutes and a plug chamfer, it is suited for blind and through-hole applications where the plug lead provides controlled thread entry. Licensed machinists and tool-and-die tradespeople are the primary installers.

This tap is used in machine shop, maintenance, and production environments where 5/8-11 UNC through-hole threads are required. The spiral point geometry pushes chips forward ahead of the tap, making it particularly effective in through-hole applications on steel workpieces. The H5 thread limit ensures tight tolerance control for standard 2B fit fastener assemblies. It is suited for use in CNC tapping centers, drill presses with tapping attachments, and manual tapping operations on ferrous metals.

Key Features

• 5/8-11 UNC thread form, right-hand cut, 2B class of fit for standard fastener compatibility
• HSS-E cobalt construction provides elevated hardness and heat resistance compared to standard HSS
• Steam oxide coating reduces friction and aids chip flow during the tapping cycle
• Spiral point geometry pushes chips forward, optimized for through-hole threading
• Plug chamfer (4-5 thread lead) allows controlled thread entry in both through-hole and sufficiently deep blind-hole applications
• H5 thread limit for consistent 2B fit tolerance across production runs

Compatibility

Designed as an OEM-style replacement or direct-use spiral point tap for 5/8-11 UNC through-hole threading operations on steel workpieces; verify machine spindle and tap holder compatibility before installation.

Installation Notes

Installation should be performed by a qualified machinist following standard tapping procedures. Ensure the workpiece is securely fixtured and the spindle is properly aligned before beginning the tapping cycle. Apply appropriate cutting fluid for the workpiece material to extend tap life and maintain thread quality. Inspect the tap for wear or chipping before each use and replace if cutting edges are degraded.