Iscar 3308108 TNMG543-GN IC830 Carbide Turning Insert

Product Description

The ISCAR 3308108 is a solid carbide turning insert in the TNMG543-GN geometry, designed for single-point turning operations on CNC and manual lathes. It carries the IC830 manufacturer grade and features a multilayer PVD coating combining TiAlN, AlTiN, and TiN under ISCAR's SumoTec proprietary coating process. The triangular insert body has a 60-degree included angle, a 1.2 mm corner radius, and a GN chip breaker configuration. At 27.5 mm in length with a 15.88 mm inscribed circle and a 6.35 mm thickness, this insert is suited for medium to semi-finishing cuts with a maximum depth of cut of 6.0 mm. It is right-hand oriented and conforms to ISO 13399 standards.

This insert is engineered for turning applications across ISO workpiece material groups M (stainless steel), P (carbon and alloy steel), and S (high-temperature alloys and titanium). It fits within ISCAR's Isoturn series and is appropriate for both roughing passes at moderate feed rates and finishing cuts where surface finish and edge consistency are priorities. Machinists and CNC programmers working in job shops, aerospace component manufacturing, and general precision turning will find this geometry and grade combination well-suited to those materials and cut conditions.

Key Features

• IC830 grade with SumoTec PVD multilayer coating: TiAlN, AlTiN, and TiN for wear resistance and thermal stability
• 60-degree triangular insert shape (TNMG style) with neutral clearance code N and tolerance code M
• GN chip breaker geometry suited for medium-depth turning cuts
• Maximum depth of cut: 6.0 mm (0.236 inches)
• Right-hand cutting orientation
• Compliant with ISO 13399 cutting tool data representation standards

Compatibility

Designed as a direct-fit replacement insert for ISCAR Isoturn series toolholders accepting TNMG 543 geometry inserts. Compatible with primary workpiece material groups M, P, and S as designated by ISO classification.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. The machine spindle must be fully stopped and locked out before seating or replacing inserts. Use the correct torx or clamp screw driver as specified by the toolholder manufacturer to secure the insert without overtightening. Inspect the insert pocket and seating surface for chips or debris before installation to ensure proper seating and tool life.