Kennametal 1184092 Milling Insert LNEU1255R08 KC725M Carbide

Product Description

The KENNAMETAL 1184092 is a solid carbide milling insert carrying the ANSI/ISO designation LNEU1255R08 and manufactured to the KC725M grade. It is a single-sided, neutral-hand rectangular insert designed for use in LN-series milling cutter bodies. The insert measures 0.5000 inches in length, 0.3750 inches wide, and 0.2165 inches thick, with a corner radius of 0.0315 inches (0.80 mm). The TiAlN coating is applied via PVD process, delivering high heat resistance and edge wear resistance during interrupted and continuous milling operations. Licensed HVAC and machining professionals in metalworking shops specify this insert for precision material removal on difficult workpiece materials.

This insert is engineered for milling steel, stainless steel, superalloys, and titanium, corresponding to material application codes P, M, and S. It carries material grade ratings of C5, C6, and C7, making it suitable for a broad range of cutting conditions from general-purpose steel roughing to finish milling of high-temperature alloys. The positive rake geometry and honed cutting edge style reduce cutting forces and promote clean chip formation. The screw-holding method provides secure clamping in compatible LN-series toolholders, and the chip breaker geometry supports effective chip control across these material families.

Key Features

• Solid carbide substrate with TiAlN PVD coating for high-temperature wear resistance
• KC725M grade rated for steel, stainless steel, superalloys, and titanium (P, M, S codes)
• 4 cutting edges per insert, single-sided configuration
• Positive rake geometry with honed cutting edge style reduces cutting forces
• Corner radius of 0.0315 inches (0.80 mm) for controlled surface finish
• Screw-held mounting method compatible with LN-series cutter bodies
• Meets ANSI and ISO standards; ANSI/ISO code LNEU1255R08

Compatibility

Designed for use in LN-series milling cutter bodies that accept LNEU-style screw-held inserts with an inscribed circle of 0.3750 inches and insert size code 1255. Verify cutter body specifications before ordering to confirm fitment.

Installation Notes

Installation is performed by qualified machining personnel following the cutter body manufacturer's torque and assembly procedures. Power down and lock out the machine spindle before removing or seating any insert. Use the appropriate Torx or hex drive as specified by the toolholder manufacturer when tightening the clamping screw. Inspect the insert pocket and seating surface for chips or debris before installing a new insert to ensure proper seating and runout control.