Kennametal 6525756 Milling Insert KC725M Solid Carbide

Product Description

The KENNAMETAL 6525756 is a solid carbide milling insert in the LNGQ series, grade KC725M, designed for high-performance milling of steel, stainless steel, superalloys, and titanium. It carries a TiAlN coating applied via PVD process, which provides thermal resistance and extended tool life in demanding cutting conditions. The insert measures 0.527 inches inscribed circle diameter, 0.5118 inches in length, and 0.25 inches thick, with a 1/32-inch corner radius and a positive rake geometry. It is installed by machinists and tooling professionals in compatible milling cutter bodies.

This insert is suited for milling applications on steel, stainless steel, superalloys, and titanium in both production and job-shop environments. The LNGQ insert style with a GE chip breaker geometry supports a broad range of material grades classified as C5, C6, and C7, corresponding to ISO workpiece material codes P, M, and S. The rectangular insert shape and 90-degree included angle make it appropriate for square-shoulder and general-purpose milling operations. It is compatible with the Mill 4-12 cutter series.

Key Features

• Solid carbide substrate with TiAlN PVD coating for heat and wear resistance
• 4 cutting edges per insert, single-sided configuration
• Positive rake geometry with honed cutting edge for clean entry and reduced cutting forces
• GE chip breaker for effective chip control in steel and superalloy milling
• ANSI and ISO standard geometry: LNGQ120608ERGEKT4
• Right-hand insert hand orientation

Compatibility

Compatible with the Kennametal Mill 4-12 cutter series. Insert style is LNGQ, insert size code 120608, and the catalog number is LNGQ120608ERGEKT4. Designed for use with screw-style insert holding in compatible milling cutter bodies.

Installation Notes

Insert replacement should be performed by a qualified machinist or tooling technician with the machine powered down and locked out per applicable safety procedures. Use the appropriate torx or hex key to seat the screw-clamp per the cutter body manufacturer specifications. Inspect the cutter pocket for wear or damage before installing a new insert. Handle solid carbide inserts carefully to avoid chipping the cutting edges prior to use.