Iscar 6403285 Threading Insert Tip 2P20-UN IC908 20 Tpi

Product Description

The ISCAR 6403285 is a carbide threading insert designed for external UN thread cutting on CNC lathes and turning centers. It carries the TIP insert style in the 2P20 size, engineered to cut 20 threads per inch (TPI) with a 60-degree included angle standard to Unified National thread forms. The IC908 manufacturer grade uses a submicron carbide substrate with a PVD coating process, delivering a coated finish that supports extended tool life at elevated cutting speeds. This insert belongs to the Cut-Grip and IscarThread series and conforms to ISO 13399 standards. It is a neutral-hand insert suited for threading operations where consistent thread geometry and surface finish are required.

This insert is used in external threading applications on ferrous and non-ferrous workpieces where UN thread standards apply. Typical installation scenarios include production turning on CNC equipment in industrial, aerospace, and general machining environments. The 2P20 insert size fits compatible ISCAR Cut-Grip and IscarThread toolholders designed for this insert geometry. Machinists and tooling specialists in production shops specify this insert for high-volume threading passes that demand repeatable 20 TPI profiles.

Key Features

• IC908 submicron carbide grade with PVD coating for wear resistance and extended tool life
• 20 TPI external thread cutting with 60-degree included angle for UN thread form compliance
• TIP insert style in 2P20 size for use in matching Cut-Grip and IscarThread toolholders
• Neutral hand orientation suitable for a range of turning setups
• Conforms to ISO 13399 tooling data standards for digital tool management integration
• Corner radius of 0.006 inches (0.15 mm) for controlled thread root geometry

Compatibility

Designed for use in ISCAR Cut-Grip and IscarThread series toolholders that accept the TIP 2P20 insert style. Consult ISCAR toolholder documentation to confirm pocket geometry and clamping compatibility before installation.

Installation Notes

Threading inserts of this type are installed and changed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before indexing or replacing the insert. Use the correct torque wrench and insert screw specified by the toolholder manufacturer — do not overtighten the clamping screw, as this can damage the insert seat. Inspect the toolholder pocket for wear or debris before seating a new insert.