Iscar 5607773 Milling Insert HM390 Tckt 0703PCTR IC808

Product Description

The ISCAR 5607773 is a solid carbide triangular milling insert carrying the HM390 TCKT 0703PCTR IC808 designation, designed for use in HELI3MILL-series face and shoulder milling cutters. Manufactured from submicron-grade carbide and coated with a multilayer PVD system of TiAlN, AlTiN, and TiN, it delivers wear resistance across a broad range of workpiece materials. The insert measures 0.307 inches in both length and width, with a thickness of 0.124 inches and a corner radius of 0.0197 inches. With three cutting edges, a positive rake geometry, and a helical cutting-edge style, this insert reduces cutting forces and supports stable chip evacuation in demanding milling operations. It is seated and held by screw-clamping in compatible HM390-07 cutter bodies.

The 5607773 insert is suited for milling steel, stainless steel, cast iron, superalloys, titanium, and hard materials, covering ISO material codes P, M, K, S, and H. It is appropriate for both roughing and finishing passes where a maximum depth of cut of 0.197 inches is acceptable. The right-hand, single-sided configuration and PCTR chip breaker geometry make it a practical choice for high-feed shoulder milling operations in production machining environments. Machinists and tooling technicians working on CNC mills and machining centers in job shops, aerospace, and general metalworking applications will find this insert applicable to a wide range of setups requiring controlled chip formation on difficult materials.

Key Features

• Submicron solid carbide substrate with IC808 grade designation for toughness and edge stability
• Multilayer PVD coating — TiAlN, AlTiN, and TiN — for heat and wear resistance
• Triangular shape with three cutting edges maximizes insert utilization and reduces per-edge cost
• Positive rake, helical cutting edge reduces cutting forces and vibration
• PCTR chip breaker geometry promotes efficient chip control across steel and hard materials
• Maximum depth of cut of 0.197 inches with a 7-degree relief angle for clearance in shoulder milling

Compatibility

Designed for use in ISCAR HM390-07 series cutter bodies as part of the HELI3MILL system. Conforms to ANSI designation HM390 TCKT 0703PCTR IC808 and ISO 13399 standard HM390 TCKT 0703PCTR.

Installation Notes

Installation is performed by a qualified machinist or tooling technician. Ensure the cutter body is removed from the spindle or the machine is in a locked-out, de-energized state before seating or replacing inserts. Use the appropriate torx or hex key to secure the clamping screw to the manufacturer-specified seating without over-torquing, which can crack the insert or damage the pocket. Inspect the insert pocket for chips or debris and confirm the insert is fully seated and stable before returning the tool to service.