Seco 00001950 RNMG64-MR4-48 883 Carbide Turning Insert

Product Description

The SECO 00001950 is a solid carbide, uncoated turning insert in the RNMG series, designed for precision metal cutting on CNC lathes and turning centers. Built to ANSI and ISO standards, this round insert carries an RNMG insert style with a 3/4 inch inscribed circle, a 3/8 inch corner radius, and a 1/4 inch insert thickness. The MR4 chip breaker geometry and T-Land cutting edge style are engineered specifically for demanding cuts in superalloys and titanium. With 8 available cutting edges per insert, it delivers consistent performance and efficient tool utilization in high-production turning environments. Installation and indexing are handled by licensed machinists and CNC setup technicians.

This insert is primarily rated for superalloys and titanium (primary workpiece material code S), with secondary suitability for steel (M), cast iron (K), non-ferrous materials (N), and hardened materials (H). It is designed for facing, profiling, and turning operations. The neutral hand orientation makes it adaptable across a range of tool holder configurations. The ISO equivalent designation for this insert is RNMG190600-MR4, and the industry standard number is RNMG64-MR4. It is sold individually per package with a minimum order quantity of 10 units.

Key Features

• Round insert shape (code R) with full radius and 360-degree included angle for continuous cutting edge engagement
• MR4 chip breaker geometry with T-Land cutting edge style optimized for superalloys and titanium
• 8 cutting edges per insert for maximum indexable value per unit
• Uncoated (bright) solid carbide substrate — material grades S10, S20, S30
• Compatible insert holding methods: clamp, pin, and lever lock
• Conforms to ANSI and ISO standards; ISO designation RNMG190600-MR4

Compatibility

Designed as a direct-fit replacement and OEM-style turning insert for tool holders accepting RNMG-style round inserts with a 3/4 inch inscribed circle and clamp, pin, or lever lock holding methods. ISO equivalent is RNMG190600-MR4; industry standard number is RNMG64-MR4.

Installation Notes

Installation and indexing should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing the insert. Use the appropriate torque wrench per the tool holder manufacturer's specifications for the clamping screw — do not overtighten by hand. Inspect the insert seat and clamp for debris or wear before seating a new insert.