Iscar 5691458 Milling Insert IC928 Tialn Helimill

Product Description

The ISCAR 5691458 is a solid carbide milling insert carrying the ANSI designation APKT 100320PDTR-RM in manufacturer grade IC928. This single-sided, right-hand parallelogram-style insert features a TiAlN coating applied via PVD process, delivering wear resistance and thermal stability during high-speed milling operations. It offers 2 cutting edges, a positive rake geometry, and a chamfered and honed cutting edge style. The insert measures 0.4290 inches in length, 0.2640 inches in inscribed circle diameter, and 0.1370 inches thick, with a 0.0787-inch corner radius. It is held in place by a screw-type clamping method and belongs to ISCAR's HELIMILL series. Licensed machinists and CNC operators are the primary installers.

This insert is engineered for milling steel, stainless steel, superalloys, and titanium — material grade classifications P, M, and S. It is suited for use in production milling environments where consistent edge performance and chip control are critical. The RM chip breaker geometry supports reliable chip evacuation across these demanding workpiece materials. Maximum depth of cut reaches 0.3620 inches (8.00 mm), making it applicable to both roughing and semi-finishing passes on a CNC milling center. It conforms to ANSI and ISO 13399 standards.

Key Features

• IC928 grade with TiAlN PVD coating for steel, stainless steel, superalloys, and titanium
• Positive rake geometry with chamfered and honed cutting edge for reduced cutting forces
• RM chip breaker for controlled chip formation across P, M, and S material groups
• 2 cutting edges on a single-sided, right-hand insert body
• Maximum depth of cut of 0.3620 inches (8.00 mm)
• Screw-lock insert holding method for secure, repeatable seating
• Compliant with ANSI and ISO 13399 insert identification standards

Compatibility

Designed for use with ISCAR HELIMILL cutter series HM90-10 toolholders that accept APKT 100320-style inserts with a screw-lock holding method.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and locked out before changing inserts. Seat the insert firmly against the pocket locating surfaces before tightening the clamping screw to avoid rocking or misalignment. Inspect the insert pocket for debris or wear before each insert change to maintain dimensional accuracy and cutting performance.