Walter-prototyp 6580447 Thread Mill 3/4-16 6 Flute Carbide

Product Description

The WALTER-PROTOTYP 6580447 is a solid carbide helical flute thread mill designed for cutting internal UNF threads at the 3/4-16 specification. With 6 right-hand flutes and a TiAlN coating, this tool delivers clean thread profiles in demanding materials while managing heat and wear effectively. The cutting diameter measures 0.551 inches, matching the 0.551-inch shank diameter, and the length of cut is 1.125 inches. Overall length is 3.465 inches. Coolant-through capability supports chip evacuation during deep or interrupted thread-milling operations. This tool is intended for use by machinists and CNC programmers working in precision manufacturing environments.

This thread mill is suited for machining internal UNF 3/4-16 threads in applications where a single-point or tap approach is not preferred or practical. Helical interpolation on a CNC machining center is the standard method of use. The 6-flute geometry improves feed rates and surface finish compared to fewer-flute designs. The TiAlN coating makes this tool appropriate for dry or near-dry cutting in ferrous and hard materials. Typical applications include aerospace components, hydraulic manifolds, and precision mechanical assemblies where thread quality and positional accuracy are critical.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard or abrasive workpiece materials
• TiAlN coating extends tool life in high-temperature cutting conditions
• 6 right-hand helical flutes improve chip load distribution and thread surface finish
• Coolant-through design supports chip flushing in deep-thread applications
• Cuts internal UNF 3/4-16 threads via CNC helical interpolation, reducing the need for rigid tapping
• Matched cutting and shank diameter of 0.551 inches simplifies tool setup and holder selection

Compatibility

Designed for machining internal UNF 3/4-16 threads on CNC machining centers capable of helical interpolation; requires a standard tool holder accepting a 0.551-inch shank diameter.

Installation Notes

This tool is installed and operated by machinists or CNC programmers on 3-axis or greater CNC machining centers. Secure the shank in a collet or end-mill holder rated for the 0.551-inch diameter before operation. Verify spindle speed, feed rate, and helical pitch programming against the manufacturer cutting data before running the first part. Enable coolant-through flow at the recommended pressure for the workpiece material to promote chip evacuation and prevent recutting.