Iscar 3347729 Carbide Cutoff Insert 4mm Tang-grip

Product Description

The ISCAR 3347729 is a solid carbide cutoff and grooving insert designed for precision parting and grooving operations on CNC lathes and turning centers. It features a 4.00 mm (0.157 inch) cutting width and a 0.50 mm corner radius, with a neutral lead angle and neutral hand orientation. The IC808 carbide grade carries a PVD-applied TiAlN/AlTiN/TiN multi-layer coating for wear resistance across a broad range of workpiece materials. The HF chipbreaker geometry promotes chip control in light to medium cuts. This insert is installed and replaced by machinists and CNC turning technicians as part of routine tooling maintenance.

The 3347729 is suited for grooving and parting applications across universal workpiece material groups, including steel, stainless steel, cast iron, non-ferrous alloys, and high-temperature alloys. Its Tang-Grip self-grip holding method provides secure clamping without an additional top clamp, making it appropriate for both O.D. grooving and cutoff work in production turning environments. The single-end insert design is intended for use in compatible Tang-Grip series toolholders.

Key Features

• 4.00 mm cutting width with a width tolerance of plus or minus 0.04 mm
• IC808 carbide grade with PVD-applied TiAlN/AlTiN/TiN coating for extended tool life
• HF chipbreaker geometry for controlled chip formation in grooving and parting
• Neutral lead angle and neutral hand for straightforward cutoff applications
• Tang-Grip self-grip insert holding method eliminates the need for a top clamp
• Compatible with universal workpiece material groups: P, M, K, H, and S ISO classifications

Compatibility

Designed for use in Tang-Grip series toolholders that accept TAG-style inserts with a 4 mm cutting width. Suitable for ISO material groups H, K, M, P, and S as indicated by the manufacturer. Confirm toolholder compatibility with the ISCAR Tang-Grip system before ordering.

Installation Notes

Installation and replacement should be performed by a qualified machinist or CNC tooling technician with the machine in a fully stopped and locked-out state. Insert the tang into the toolholder slot and ensure the self-grip mechanism seats fully before resuming operation. Inspect the seating pocket for chips or contamination prior to inserting a new cutting edge. Follow the toolholder manufacturer's recommended clamping procedure for Tang-Grip style inserts.