Iscar 3311927 FFQ4 Somt 120516T IC830 Milling Insert

Product Description

The ISCAR 3311927 is a solid carbide milling insert in the MILL4FEED series, designed for high-feed face milling operations. It carries the ANSI/ISO designation FFQ4 SOMT 120516T and is manufactured to the IC830 grade with an AlTiN plus TiN PVD coating applied via the Sumotec PVD process. The insert features a square shape with a 90-degree included angle, four neutral-hand cutting edges, a positive rake geometry, and a T-Land cutting edge style. At 0.205 inches thick with a 0.5 inch inscribed circle, it is a compact, single-sided insert secured by screw-type clamping. Licensed machinists and CNC tooling technicians install these inserts in compatible MILL4FEED cutter bodies.

This insert is intended for high-feed milling of steel, stainless steel, superalloys, and titanium workpieces, covering ISO material application codes P, M, and S. The IC830 grade and Sumotec PVD coating are optimized for interrupted and continuous cuts in these demanding materials. Typical applications include face milling, shouldering, and ramping passes on machining centers and mill-turn platforms in both production shop and job shop environments. The 0.059 inch maximum depth of cut and 0.437 inch effective cutting edge length make this insert well suited for the high-feed, low-depth strategies used to reduce spindle load on harder alloys.

Key Features

• IC830 grade with AlTiN plus TiN Sumotec PVD coating for wear resistance on steel and superalloys
• 4 neutral-hand cutting edges per insert, positive rake geometry with T-Land edge style
• Square SOMT insert shape, 90-degree included angle, screw-type insert holding
• 1.60 mm corner radius (0.063 inches) reduces edge chipping at entry and exit
• Maximum depth of cut 0.059 inches, effective cutting edge length 0.437 inches for high-feed strategy
• Compliant with ANSI and ISO 13399 standards; ANSI code FFQ4 SOMT 120516T IC830

Compatibility

Compatible with ISCAR FFQ4 series cutter bodies. Verify cutter pocket specifications match insert size code 120516 before installation.

Installation Notes

Installation is performed by qualified CNC machinists or tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct torx or hex key at the manufacturer-specified procedure for screw-type insert clamping — do not over-tighten the clamping screw, as this can crack the carbide substrate. Inspect the cutter pocket and seating surface for chips or damage before seating a new insert.