Kennametal 1160027 DNMG432 K68 Carbide Turning Insert

Product Description

The KENNAMETAL 1160027 is a solid carbide turning insert designed for precision metal removal on CNC lathes and turning centers. It carries the ANSI designation DNMG432 (ISO: DNMG150408) and belongs to the KENLOC series. The insert features a 55-degree diamond (rhombic) shape, a negative rake angle, and a bright uncoated K68 carbide grade engineered for high wear resistance with moderate toughness. With a 0.5-inch inscribed circle, a 0.1875-inch thickness, and a 1/32-inch corner radius, this insert is suited for medium machining chip-breaker operations across a range of workpiece materials.

This insert is intended for turning, facing, boring, back turning, and back boring applications. The K68 uncoated grade is optimized for stainless steel (M), cast iron (K), aluminum and non-ferrous metals (N), and superalloys and titanium (S), making it a versatile option where coating-related thermal or chemical interactions must be avoided. It is held in place using a clamp and pin method consistent with KENLOC-style toolholders. The insert delivers four usable cutting edges, maximizing tool life per insert. This part is sold individually with a minimum order quantity of 5 units.

Key Features

• ANSI grade K68 uncoated solid carbide with high wear resistance and moderate toughness
• 55-degree diamond (D-shape) insert geometry with negative rake and zero relief angle
• Four cutting edges per insert for extended service life
• 1/32-inch corner radius with chamfered and honed cutting edge style
• Compatible with medium machining operations: turning, facing, boring, back turning, and back boring
• Meets ANSI and ISO dimensional standards (DNMG432 / DNMG150408)

Compatibility

Designed for use in KENLOC-series negative-style toolholders that accept DNMG432 inserts with clamp and pin holding. Suitable for machining stainless steel, cast iron, aluminum, non-ferrous metals, superalloys, and titanium workpieces at medium material removal rates.

Installation Notes

Installation is performed by a qualified machinist or CNC tooling technician. The machine spindle must be stopped and the turret fully indexed and locked before seating or replacing the insert. Use the correct torque tool for the KENLOC clamp screw to ensure proper seating without cracking the insert. Inspect the insert pocket and pin locator for wear or debris before each insert change.