Vargus 63221 Carbide Thread Mill Insert 1.5mm Pitch Iso

Product Description

The VARGUS 63221 is a carbide thread mill insert engineered for internal ISO threading operations. Manufactured from micrograin carbide with a TiAlN finish applied via PVD coating, this insert delivers consistent thread form geometry and extended tool life in steel workpiece applications. The insert follows the 3I style designation with a 3/8 inch (9.53 mm) inscribed circle and a 1.5 mm pitch, making it a direct-fit component for standard TM series thread milling toolholders. It is suited for CNC machining centers where thread milling is preferred over tapping for accuracy or tool flexibility. Machinists and tooling specialists working to ISO R262 (DIN 13) thread standards will find this insert meets those requirements directly.

This insert is used in internal thread milling applications on steel components, covering a broad range of workpiece material grades classified under the P (steel) category. It fits standard TM series thread milling bodies and is intended for shops running ISO metric thread programs. Typical applications include threading bores in ferrous machined parts where a milling approach is selected for thread quality control or when rigid tapping is not practical. The 1.5 mm pitch suits common M-series metric fastener threads found throughout general mechanical and structural assemblies.

Key Features

• Micrograin carbide substrate provides high hardness and wear resistance for steel threading
• TiAlN PVD coating extends insert life and supports dry or semi-dry cutting conditions
• 1.5 mm pitch conforms to ISO R262 (DIN 13) thread standard
• Internal thread geometry with 3I insert style for standard TM series toolholders
• 3/8 inch (9.53 mm) inscribed circle - fits standard body sizes in the TM series
• Grade VTX designation indicates manufacturer-specified cutting geometry for steel (P-class) materials

Compatibility

Designed for use with VARGUS Standard TM series thread milling toolholders accepting the 3I insert style with a 3/8 inch inscribed circle. Intended for internal ISO metric threading at 1.5 mm pitch on steel workpieces.

Installation Notes

Thread mill inserts should be seated and torqued using the toolholder manufacturer's specified insert screw and wrench - do not substitute fasteners. Verify insert style and inscribed circle dimensions match the toolholder pocket before installation. Program thread milling cycles according to the toolholder and insert manufacturer's recommended cutting data for the workpiece material class. Inspect seating surfaces for chips or debris before each insert change to ensure proper registration and runout control.