Iscar 5604294 Milling Insert Spmt 100408TR-HQ-M IC908

Product Description

The ISCAR 5604294 is a solid carbide milling insert carrying the ANSI and ISO designation SPMT 100408TR-HQ-M in grade IC908. It is a square-shaped, single-sided insert with a 90-degree included angle, four cutting edges, and a positive rake geometry. The TiAlN PVD coating and submicron carbide substrate are matched to demanding milling applications across a broad range of workpiece materials. The insert seats in a screw-clamped pocket and is sized at 0.4016 inches wide and 0.1670 inches thick, with a corner radius of 0.0315 inches (1/32 inch). It is installed by licensed machinists and CNC tooling professionals in production milling operations.

This insert is engineered for milling steel, stainless steel, cast iron, superalloys, titanium, and hard materials, covering ISO material groups P, M, K, S, and H. The HQ chip breaker geometry promotes controlled chip formation across these material classes. The T-Land cutting edge style provides edge stability under interrupted cuts and variable feed conditions. The insert is right-hand oriented and belongs to ISCARs HELIQUAD series, making it applicable in face milling, shoulder milling, and similar toolpaths where consistent depth-of-cut control is required.

Key Features

• IC908 grade: submicron solid carbide substrate with TiAlN PVD coating for extended tool life in steel and hard materials
• Four cutting edges on a square single-sided insert body for cost-effective edge utilization
• HQ chip breaker with T-Land edge style for stable, controlled cutting across multiple material groups
• Positive rake geometry reduces cutting forces and heat generation at the workpiece interface
• Maximum depth of cut of 0.3150 inches with an effective cutting edge length of 0.3701 inches
• Screw-clamped insert holding method compatible with HELIQUAD series cutter bodies

Compatibility

Compatible with ISCAR HELIQUAD series cutter bodies designated FSB, SSB, SPK, F90SP, and E90SP that accept SPMT 100408 pocket geometry.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Disengage and lock out the machine spindle before seating or removing inserts. Use the correct torque driver and clamping screw specified by the cutter body manufacturer to avoid insert rocking or screw damage. Inspect the pocket seating surface for chips or debris before installing a new insert to ensure full contact and accurate edge positioning.