Emuge BU20C300.5001 Spiral Point Tap 2-56 Unc Hss-e

Product Description

The EMUGE BU20C300.5001 is a spiral point tap designed for through-hole threading in a 2-56 UNC thread form. Built from HSS-E cobalt high-speed steel and finished with a GLT-1 coating, this tap delivers durable cutting performance in a compact geometry suited to small-diameter work. The plug chamfer provides a gradual lead-in for controlled thread engagement. With 2 flutes and a right-hand thread direction, it produces accurate 2B class of fit threads at 56 threads per inch. The H3 thread limit designation ensures consistent tolerance control across production runs. Licensed machinists and tool-and-die professionals working in precision threading operations are the primary users of this tap.

This tap is intended for through-hole threading applications across a range of workpiece materials including steel, stainless steel, cast iron, and non-ferrous metals. The spiral point geometry pushes chips forward ahead of the cutting zone, making it well suited for through-hole production work where chip evacuation is critical. It is appropriate for use in CNC machining centers, drill presses, and tapping machines where controlled feed rates and rigid setups can be maintained. Coolant-through is not supported by this tap.

Key Features

• 2-56 UNC thread form with 56 threads per inch and H3 thread limit for tight tolerance control
• HSS-E cobalt construction provides elevated heat and wear resistance compared to standard HSS
• GLT-1 coating reduces friction and extends tool life in ferrous and non-ferrous materials
• Plug chamfer with 2-flute spiral point geometry promotes forward chip ejection in through-hole work
• Right-hand thread direction, 2B class of fit, no interrupted thread design
• Compact overall length of 1.7717 inches suits small-part fixturing and confined tapping operations

Compatibility

Designed for through-hole threading in steel, stainless steel, cast iron, and non-ferrous metal workpieces requiring a 2-56 UNC 2B class of fit thread.

Installation Notes

Installation and use of this tap should be performed by a qualified machinist or tooling professional. Always secure the workpiece rigidly and ensure the tapping spindle is properly aligned before engagement to avoid tap breakage in small-diameter work. Power down and de-energize all machine motion before changing or inspecting tooling. Follow the machine tool manufacturer's recommended feed rates and speeds for the workpiece material being threaded.