Vargus 64694 Carbide Thread Mill Insert 16 Tpi Un

Product Description

The VARGUS 64694 is a carbide thread mill insert designed for internal UN thread milling applications. Manufactured in a 5I insert style from micrograin carbide in the VK2 grade, this insert delivers consistent thread form geometry at 16 teeth per inch with an inscribed circle of 0.625 inches. The bright uncoated finish is applied via PVD process, making it suited for applications where coating buildup would affect thread tolerance or where cutting fluid compatibility with coatings is a concern. Licensed machinists and toolroom operators install these inserts into compatible thread mill bodies for CNC thread milling operations.

This insert is used in internal thread milling of UN-standard threads at 16 TPI. Typical applications include machining internal threads in ferrous and non-ferrous materials where a thread mill approach is preferred over tapping, such as blind holes, large-diameter threads, or situations requiring a single tool to cut multiple thread sizes. The 5I insert style fits thread mill holders designed for that seat geometry. Minimum order quantity for this insert is 5 pieces; each package contains 1 insert.

Key Features

• 5I insert style in micrograin carbide VK2 grade for wear resistance and edge consistency
• 16 TPI for UN internal thread milling applications
• 0.625 inch inscribed circle for compatibility with the corresponding tool body seat size
• Bright uncoated finish applied by PVD process - no coating buildup affecting thread tolerance
• Designed for internal UN thread standard geometry

Compatibility

Designed as an OEM-style replacement insert for thread mill bodies that accept the 5I insert style seat. Verify tool body seat geometry and inscribed circle requirement before ordering.

Installation Notes

Thread mill inserts are seated and clamped into a compatible thread mill body by a qualified machinist or toolroom technician. Power down and lock out the CNC spindle before changing inserts. Ensure the insert seat is clean and free of chips before seating the new insert to prevent rocking or improper clamping. Follow the tool body manufacturer torque specifications for the clamping screw - do not substitute fasteners.