Seco 02566016 Milling Insert LNKT060508PPTN-M06 MK1500

Product Description

The SECO 02566016 is a solid carbide milling insert carrying the ANSI and ISO designation LNKT060508PPTN-M06, grade MK1500, designed for indexable milling operations targeting cast iron workpieces. The insert features a CVD-applied Duratomic multilayer coating of TiCN and Al2O3 for thermal and wear resistance at the cutting edge. It measures 0.3937 inches in length, 0.2362 inches in width, and 0.1969 inches in thickness, with a 0.0315-inch corner radius. The double-sided, neutral-hand design provides four usable cutting edges per insert, extending tool life between change-outs. Licensed HVAC, metalworking, and machining professionals install and index this insert on compatible milling cutter bodies.

This insert is intended for milling applications in cast iron (material code K), including gray iron, ductile iron, and compacted graphite iron in both roughing and semi-finishing passes. The negative rake geometry combined with the T-Land cutting edge style supports stable, predictable cutting action in interrupted and continuous cuts. The M06 chip breaker geometry manages chip formation during cast iron milling. Compatible with the SECO R335.18 cutter series, this insert fits into standard LNKT-06 series pockets held by screw clamping. It ships individually but carries a minimum order quantity of 10 units.

Key Features

• CVD Duratomic coating: TiCN plus Al2O3 multilayer for extended tool life in cast iron
• Double-sided insert delivers 4 cutting edges per unit, reducing per-edge cost
• Negative rake, T-Land cutting edge style for stable engagement and edge strength
• M06 chip breaker optimized for cast iron chip control
• Micrograin carbide substrate grade MK1500 balances toughness and wear resistance
• Neutral hand orientation fits both left-hand and right-hand cutter positions

Compatibility

Designed for use in SECO R335.18 series milling cutter bodies. Insert pocket designation is LNKT-06 series, screw-clamped. ANSI and ISO code LNKT060508PPTN-M06 can be used to cross-reference compatible cutter bodies from other manufacturers that accept the LNKT-06 insert style.

Installation Notes

Indexing and replacement of milling inserts should be performed by a qualified machinist or toolroom technician with the machine fully stopped, spindle locked, and all energy sources isolated per lockout/tagout procedures. Use the correct Torx or hex key to the cutter body manufacturer's specified seat-screw torque — do not overtighten, as this can crack the carbide insert. Inspect the insert seat pocket for chips or debris before seating a new insert, and verify the insert is fully seated and flush before resuming cuts. Handle carbide inserts carefully — edges are brittle and can chip if dropped or knocked against hard surfaces.