1/4-20 RH Extra Long Tap

The 1/4-20 RH Extra Long Tap from FIVESTAR is a precision cutting tool engineered for machinists, gunsmiths, and fabricators who demand accuracy in threaded hole creation. This right-hand thread tap is designed to cut internal threads in the 1/4-20 UNC (Unified National Coarse) standard, making it essential for applications requiring fastener compatibility across industrial and tactical manufacturing. Extra-long geometry extends reach into deep recesses and hard-to-access workpieces, distinguishing it from standard tap lengths.

The 1/4-20 RH Extra Long Tap utilizes spiral or straight flute geometry to efficiently evacuate chips while cutting, reducing binding and extending tool life in both manual and CNC applications. Right-hand rotation (standard for most tapping operations) ensures predictable thread formation and consistent fit across mated components. At 3.55 inches in overall length, this tap provides superior reach compared to conventional lengths while maintaining the 1/4" shank diameter for compatibility with standard tap holders and chucks. FIVESTAR's construction meets industry specifications for hardness and durability, supporting production runs and repair work alike.

Professionals working on custom firearm builds, precision machinery assembly, and industrial fabrication benefit most from extra-long tap geometry when threading mounting holes, receiver components, or barrel extensions where standard taps cannot reach. This tap excels when creating threads in counterbored holes or blind holes set deeper than conventional tap lengths accommodate. Proper use requires a tap guide, cutting fluid appropriate for the workpiece material, and careful feed pressure to avoid breakage—essential practices for achieving Class 2B thread fit and component reliability.