Guhring 9018730050030 Spiral Point Tap M5x0.5 Cobalt

Product Description

The GUHRING 9018730050030 is a spiral point tap designed for through-hole threading in metric fine applications. Built from cobalt high-speed steel with a bright finish, this plug-chamfer tap drives chips forward ahead of the cutting zone, making it well suited for continuous through-hole work. It carries a 6H thread class of fit and a D3/D4 thread limit, delivering consistent tolerance control on M5 x 0.5 metric fine threads. The 3-flute geometry balances chip evacuation with cutting stability, and the 70 mm overall length provides adequate reach for standard workpiece depths. Licensed HVAC techs, machinists, pipefitters, and maintenance trades who require precise metric fine tapped holes in production or repair environments will find this tap a direct fit for that task.

This tap is rated for through-hole threading in aluminum, non-ferrous metals, stainless steel, and steel. The cobalt construction handles the additional heat and wear stress encountered when tapping stainless steel and harder alloys. Plug chamfer geometry requires a clean through-hole entry and is not intended for blind-hole bottoming work. The right-hand thread direction covers the vast majority of standard metric fastener applications. This is a Series 1873 tap from GUHRING, sized for M5 x 0.5 metric fine pitch, and it ships as a single unit.

Key Features

• M5 x 0.5 metric fine thread form with 6H class of fit and D3/D4 thread limit
• Cobalt high-speed steel construction for extended tool life in stainless steel and hard alloys
• Spiral point geometry evacuates chips forward — optimized for through-hole threading
• 3-flute design balances chip clearance and cutting edge support
• Plug chamfer for standard through-hole entry and alignment
• Bright finish, right-hand thread direction, no coolant-through requirement

Compatibility

Designed for through-hole threading in aluminum, non-ferrous metals, stainless steel, and steel workpieces requiring M5 x 0.5 metric fine threads at a 6H tolerance class.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a calibrated tap handle or CNC tapping setup aligned to the drilled hole centerline. Ensure the workpiece is securely fixtured and the pilot hole diameter is correct for the M5 x 0.5 pitch before tapping. Apply appropriate cutting fluid for the workpiece material, particularly when tapping stainless steel. This tap is not designed for blind-hole bottoming — use a bottoming tap for that application.