Sandvik Coromant 6851327 Turning Insert RNMG64-SM H13A

Product Description

The SANDVIK COROMANT 6851327 is a round solid carbide turning insert in the T-Max P series, designed for high-demand metal cutting operations in CNC turning centers and lathes. Carrying the ANSI insert code RNMG64 and ISO code RNMG 19 06 00-SM H13A, this insert is manufactured from uncoated H13A carbide grade and features the SM chip breaker geometry, which is optimized for roughing and medium machining applications. With 8 available cutting edges per insert and a 3/4 inch (0.7500 inch) inscribed circle, it delivers consistent performance across extended production runs. Licensed machinists and CNC operators working with stainless steel, cast iron, aluminum, and superalloys specify this insert for its predictable edge life and controlled chip formation.

This insert is suited for roughing and medium machining passes on a range of workpiece materials including stainless steel, cast iron, aluminum and non-ferrous alloys, and special or super alloys including titanium. The SM chip breaker geometry handles variable depths of cut and interrupted entry conditions common in production turning environments. The round insert shape provides the longest possible cutting edge and distributes cutting forces evenly, making it a practical choice for profiling and contour turning operations where tool pressure management is critical.

Key Features

• ANSI insert code RNMG64 with ISO code RNMG 19 06 00-SM H13A for direct cross-reference
• H13A uncoated solid carbide grade with high wear resistance across cast iron, aluminum, and superalloy applications
• SM chip breaker geometry rated for roughing and medium machining operations
• Round insert shape with 8 cutting edges maximizes value per insert
• Neutral hand orientation compatible with clamp and pin insert holding methods
• 0 degree relief angle (negative side clearance) provides increased edge strength under heavy loads

Compatibility

Designed as an OEM-style replacement turning insert for SANDVIK COROMANT T-Max P series toolholders accepting RNMG-style round inserts with clamp or pin holding. Compatible with toolholders specifying ANSI code RNMG64 or ISO code RNMG190600 inserts.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's specified torque and clamping procedure. Ensure the toolholder pocket and seating surfaces are clean and free of chips or debris before installing the insert to prevent micro-fracture at the cutting edge. Power down and lock out the machine spindle before any insert change. Never exceed the recommended depth of cut or feed rate range specified in the applicable SANDVIK COROMANT cutting data reference for this grade and chip breaker combination.