Guhring 9039150200000 Spiral Point Tap M20x2.5 Tin Hss-e

Product Description

The GUHRING 9039150200000 is a spiral point tap designed for right-hand through-hole threading in metric applications. Built from HSS-E cobalt high-speed steel and finished with a TiN (titanium nitride) coating, this tap handles steel threading at M20x2.5 thread size with a 6H class of fit. Four flutes and a plug chamfer provide controlled chip ejection ahead of the tap, making it well suited for CNC and manual tapping of through-hole bores. The D6/D7 thread limit designation ensures consistent tolerance control across production runs. At 4.469 inches overall length with a 2-inch thread length, it fits standard tap holders used in machining and maintenance environments.

This tap is intended for through-hole threading operations in steel materials, following the metric thread standard at M20 x 2.5 mm pitch. The plug chamfer style, with approximately 3 to 5 chamfered threads, is a general-purpose starting geometry that works in both hand tapping and machine tapping setups. It is commonly used by machinists, maintenance technicians, and fabricators working in production or repair environments where consistent metric thread quality is required.

Key Features

• M20x2.5 metric thread size with 6H class of fit for standard tolerance threading
• HSS-E cobalt construction for improved heat and wear resistance in steel applications
• TiN coating reduces friction and extends tool life in through-hole tapping
• 4-flute spiral point geometry pushes chips forward for clean through-hole thread formation
• Plug chamfer style suits both CNC machine tapping and hand tapping operations
• D6/D7 thread limit for reliable tolerance control in production environments

Compatibility

Designed for through-hole threading in steel workpieces following the metric thread standard. Compatible with standard tap holders and collet chucks sized for a 0.652-inch shank diameter. Belongs to GUHRING Series 3915.

Installation Notes

Machining professionals should ensure the workpiece is securely fixtured and the tap holder is aligned perpendicular to the bore before starting. Power down or disengage the spindle before loading or removing the tap. Always use appropriate cutting fluid for steel to prevent galling and premature wear. Verify that the through-hole is drilled to the correct tap drill diameter for M20x2.5 before threading to maintain the 6H fit specification.