Guhring 9039730100060 Spiral Point Tap M10x1.25 Cobalt

Product Description

The GUHRING 9039730100060 is a spiral point tap designed for through-hole threading in a wide range of metals. Part of the Series 3973 lineup, it cuts an M10 x 1.25 Metric Fine thread with a plug chamfer and a 6H class of fit. The tap is manufactured from cobalt high-speed steel and carries a TiN (Titanium Nitride) coating, which improves surface hardness and reduces friction during cutting. With 3 flutes and a right-hand thread direction, it pushes chips forward ahead of the tap — a key advantage in through-hole applications. Overall length is 2.941 inches and shank diameter is 0.381 inches. Licensed machinists and toolroom technicians are the primary users of this tool.

This tap is suited for through-hole threading operations in both manual and CNC machine tool environments. It is rated for use across a broad material range including aluminum, gray cast iron, malleable iron, spheroidal iron, non-ferrous metals, stainless steel, and steel. The D4/D5 thread limit designation makes it appropriate for standard tolerance threading where a 6H fit is specified. It does not support coolant-through delivery, so conventional flood or manual lubrication applies.

Key Features

• M10 x 1.25 Metric Fine thread form with 6H class of fit
• Cobalt HSS construction for improved heat and wear resistance over standard HSS
• TiN coating reduces friction and extends tool life in ferrous and non-ferrous applications
• Spiral point geometry pushes chips forward — optimized for through-hole threading
• Plug chamfer provides a standard starting taper for general-purpose use
• D4/D5 thread limit for consistent tolerance control

Compatibility

Designed for through-hole threading of M10 x 1.25 Metric Fine threads in aluminum, gray cast iron, malleable iron, spheroidal iron, non-ferrous metals, stainless steel, and steel workpieces.

Installation Notes

Installation and use should be performed by a qualified machinist or toolroom technician familiar with tapping speeds, feeds, and cutting fluid requirements for the workpiece material. Secure the workpiece and ensure the tap is properly aligned before engagement to avoid thread damage or tap breakage. Always use an appropriate cutting fluid or tapping compound for the material being machined — do not run dry. Inspect the tap for wear or chipping before each use and replace when thread quality degrades.