Sandvik Coromant 8019635 Turning Insert Cnmg 16 06 08-MR

Product Description

The SANDVIK COROMANT 8019635 is a CNMG-style turning insert designed for steel cutting on CNC lathes and turning centers. It carries the ISO designation CNMG 16 06 08-MR 4425 and features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN over a solid carbide substrate. The MR chip breaker geometry is engineered for medium roughing operations in steel, promoting controlled chip evacuation and consistent edge life. The insert has a 0.625-inch inscribed circle, a 0.0313-inch corner radius, and a 0.250-inch thickness. Machinists and CNC operators working in ISO P (steel) applications install this insert in compatible CNMG toolholders secured by clamp or screw clamping.

This insert is suited for medium to rough turning of carbon steel, alloy steel, and similar ISO P workpiece materials. It is appropriate for both roughing passes where material removal rate is the priority and finishing passes where moderate surface finish requirements apply. The MR chip breaker designation indicates optimized performance at moderate depths of cut and feed rates typical in production turning environments. Secondary application extends to ISO K materials as noted by the secondary workpiece material code. Professional machinists, tool and die shops, and production turning operations are the primary installers.

Key Features

• CVD multilayer coating: TiCN base, Al2O3 thermal barrier, TiN top layer for wear resistance and heat management
• MR chip breaker geometry optimized for medium roughing in ISO P steel applications
• 0.0313-inch corner radius balances edge strength with surface finish capability
• Neutral hand orientation compatible with a wide range of CNMG toolholder configurations
• Clamp and screw insert holding method provides secure seating under interrupted and continuous cuts
• Relief angle code N (0 degrees) and tolerance code M for precise insert-to-holder fit

Compatibility

Designed for use in CNMG-style toolholders accepting a 5/8-inch inscribed circle insert with clamp or screw holding. Primary workpiece material is steel (ISO P); secondary compatibility extends to ISO K materials per the manufacturer attribute data.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Before changing inserts, power down the machine and engage the spindle lock per the machine tool manufacturer's lockout procedure. Seat the insert fully in the toolholder pocket and tighten the clamping screw to the torque specification listed in the toolholder documentation. Inspect the insert seat and shim for debris or damage before each insert change to maintain consistent tool height and prevent premature edge failure.