Kennametal 1161172 SNMP643 K68 Carbide Turning Insert

Product Description

The KENNAMETAL 1161172 is a solid carbide, uncoated turning insert in the KENLOC series, designed for precision metal cutting operations in CNC and manual turning applications. This insert carries the ANSI code SNMP643 and ISO code SNMP190612. It features a 90-degree square shape with a 0.75 inch inscribed circle, a 0.0469 inch corner radius, and a 0.25 inch insert thickness. The K68 grade delivers high wear resistance balanced with toughness, making it well suited for machining stainless steel, cast iron, aluminum, and other non-ferrous materials. Installation is performed by qualified machinists and CNC operators using clamp and pin holding methods.

This insert is appropriate for turning, facing, and boring operations across a range of workpiece materials including non-ferrous metals, superalloys, and titanium. The neutral hand orientation and negative rake geometry allow it to be used in a wide variety of toolholders. The medium chip breaker profile handles moderate material removal rates and general-purpose cutting. It is suitable for both light finishing passes and moderate roughing within the specified maximum depth of cut.

Key Features

• K68 grade solid carbide with bright uncoated finish for high wear resistance and toughness across multiple material groups
• 90-degree square insert shape (S) with negative side clearance and negative rake for stable cutting forces
• 0.75 inch inscribed circle and 0.75 inch insert length with 0.0469 inch corner radius for consistent edge geometry
• 8 cutting edges per insert maximizing tool utilization and reducing per-edge cost
• Medium chip breaker profile suited for turning, facing, and boring at moderate material removal rates
• Compatible with clamp and pin holding systems per KENLOC toolholder standard
• Meets ANSI and ISO dimensional standards for broad toolholder interchangeability

Compatibility

Designed for use in KENLOC series toolholders accepting SNMP-style inserts with clamp and pin holding. Suitable for multi-use applications including turning, facing, and boring. Verify toolholder acceptance of SNMP643 geometry and negative-style inserts before installation.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Power down and lock out the machine spindle before seating or replacing inserts. Use appropriate torx or hex key tooling to secure the clamp per the toolholder manufacturer specifications. Inspect the insert pocket for chips or debris before seating to ensure proper edge registration and prevent premature insert failure.