Guhring 9028760030000 Spiral Point Tap M3x0.5 Cobalt

Product Description

The GUHRING 9028760030000 is a cobalt spiral point tap designed for cutting right-hand internal threads in through-hole applications. Built to metric M3 x 0.5 specifications with a 6H class of fit and D2/D3 thread limit, it delivers consistent thread quality in ferrous materials. The plug chamfer style eases entry into the workpiece, while the spiral point geometry pushes chips ahead of the tap and out through the exit side of the hole. With 3 flutes and an oxide finish, this tap is well suited for production and maintenance machining environments where accuracy and tool life in harder materials are priorities. Licensed machinists and toolroom technicians are the primary users.

This tap is intended for through-hole threading operations in stainless steel and steel. The cobalt construction provides the added heat and wear resistance needed when cutting work-hardening alloys such as austenitic stainless steel. It is suited for CNC machining centers, drill presses, and tapping arms where controlled feed rates and rigid setups are maintained. The M3 x 0.5 thread size is common in instrumentation, fastener, and light mechanical assemblies across both industrial and commercial fabrication settings.

Key Features

• Cobalt construction improves heat resistance and tool life in stainless steel and alloy steel
• Spiral point geometry pushes chips forward through the hole, reducing chip packing in through-hole applications
• Plug chamfer provides gradual thread engagement for easier starting and reduced tap breakage
• Oxide finish offers mild lubricity and corrosion resistance during storage and use
• 6H class of fit meets standard metric tolerance requirements for general-purpose fastener threads
• Right-hand thread direction compatible with standard CNC and manual tapping equipment

Compatibility

Designed for through-hole threading in stainless steel and steel workpieces requiring M3 x 0.5 right-hand metric threads to a 6H class of fit. Part of GUHRING Series 2876.

Installation Notes

This tap is installed and operated by machinists or toolroom technicians using CNC equipment, tapping heads, or manual tapping arms. Always ensure the spindle speed and feed rate are appropriate for the workpiece material before beginning the tapping cycle. Power down and de-energize the machine before changing or inspecting the tap. Use a cutting fluid rated for the workpiece material, particularly when threading stainless steel, to reduce heat buildup and extend tool life.