Emuge BU497300.0040 M4x0.7 Spiral Point Tap Hss-e NT2

Product Description

The EMUGE BU497300.0040 is a spiral point tap designed for through-hole threading in M4x0.7 metric applications. Built from HSS-E cobalt high-speed steel and finished with an NT2 coating, this tap handles demanding materials including steel, stainless steel, cast iron, and non-ferrous metals. The spiral point geometry pushes chips forward through the hole, making it well-suited for machine tapping in production environments. With a plug chamfer, 3-flute design, and a 2B class of fit, it produces accurate, consistent threads at M4x0.7 pitch. Overall length is 2.48 inches with a thread length of 0.51 inches.

This tap is intended for through-hole threading operations on CNC machining centers, drill presses, and tapping machines in job shop, toolroom, and production environments. It handles right-hand threading without coolant-through capability. Material applications include steel, stainless steel, cast iron, and non-ferrous metals, making it a versatile choice for general-purpose and light industrial machining work. The NT2 coating reduces friction and extends tool life in abrasive materials.

Key Features

• M4x0.7 metric thread size with 2B class of fit for standard tolerance threading
• HSS-E cobalt construction for improved heat and wear resistance over standard HSS
• NT2 coating reduces friction and improves tool life in steel and stainless applications
• Spiral point geometry pushes chips forward, optimized for through-hole operations
• Plug chamfer provides a gradual lead-in suitable for machine tapping
• Right-hand, 3-flute design with no interrupted thread geometry

Compatibility

Designed for through-hole threading in M4x0.7 metric applications across steel, stainless steel, cast iron, and non-ferrous metal workpieces. Part of the EMUGE Series BU497300.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with tapping operations. Power down and lock out the machine before changing or inspecting taps. Ensure correct spindle speed and feed rate for the workpiece material before use. Follow applicable shop safety procedures and manufacturer guidelines when handling cutting tools.