Iscar 3309394 Milling Insert IC882 Solid Carbide

Product Description

The ISCAR 3309394 is a solid carbide milling insert in the HM390 TPKT 1003PDR IC882 configuration, designed for use in helical milling operations. It features a triangular shape with a positive rake angle and a PDR chip breaker, giving it three available cutting edges per insert. The IC882 grade combines AlTiN, TiAlSiN, and TiSiN coatings applied via PVD process, producing a multilayer surface well suited to high-temperature cutting conditions. With a maximum depth of cut of 8.00 mm and a corner radius of 0.80 mm, this insert is built for aggressive material removal in demanding applications.

This insert is intended for machining stainless steel, superalloys, and titanium — ISO material groups M and S. It is engineered for right-hand cutting and is held in the cutter body by screw clamping. The insert mounts in cutters from the HM390-10 cutter series, identified by the HELI3MILL platform designation. Typical users include CNC machinists and tooling specialists working in aerospace, medical device, and industrial manufacturing environments where difficult-to-machine alloys are common.

Key Features

• IC882 PVD-coated solid carbide grade with AlTiN, TiAlSiN, and TiSiN multilayer coating for high-heat resistance
• Triangular insert shape with 3 cutting edges for extended tool life per insert
• PDR chip breaker geometry with positive rake angle for efficient chip evacuation
• Maximum depth of cut of 8.00 mm for productive material removal
• 11-degree relief angle reduces cutting forces on stainless steel and superalloys
• Compliant with ANSI and ISO 13399 standards for tooling interoperability

Compatibility

Designed for use with HM390-10 series cutter bodies in the HELI3MILL platform. ANSI code: HM390 TPKT 1003PDR IC882. ISO code: HM390 TPKT 1003PDR. Insert size code 1003 with an inscribed circle of 7.50 mm fits compatible toolholders within that dimensional family.

Installation Notes

Installation is performed by a qualified CNC machinist or tooling technician. Power down and lock out the machine spindle before seating or replacing inserts. Secure the insert using the designated clamping screw and torque per the toolholder manufacturer's documentation. Inspect the cutter pocket and seating surfaces for debris or wear before installing a new insert.