Sandvik Coromant 8019706 Turning Insert 55 Diamond Carbide

Product Description

The SANDVIK COROMANT 8019706 is a DNMX-WM series indexable turning insert designed for steel turning applications in CNC and manual lathe operations. Manufactured from solid carbide and coated via CVD process with a TiCN, Al2O3, and TiN multilayer stack, this insert delivers the wear resistance and thermal barrier needed for continuous and interrupted cuts in steel. The neutral hand orientation suits both right- and left-hand toolholders. The 55-degree diamond shape (ISO code D) with a 0.0469-inch corner radius provides a balance of strength and cutting edge accessibility. The 0.5-inch inscribed circle fits standard DNMX-style toolholders. Licensed machinists and CNC operators install this insert in production and job-shop turning environments.

This insert is rated for primary use on steel workpieces and carries a secondary workpiece material code of K, indicating suitability for cast iron family materials as well. The WM chip breaker geometry is optimized for medium-cutting-condition steel turning, managing chip evacuation under moderate feed and depth-of-cut ranges. The 4425 grade designation reflects the manufacturer coating and substrate specification for this insert family. Typical applications include OD turning, facing, and light profiling on steel components in both production and maintenance machining settings.

Key Features

• CVD multilayer coating: TiCN, Al2O3, TiN for extended tool life in steel turning
• 55-degree diamond insert shape (code D) for accessible toolpaths and profiling capability
• 0.0469-inch corner radius balances edge strength with surface finish requirements
• Neutral hand — compatible with right-hand and left-hand DNMX toolholders
• WM chip breaker geometry optimized for medium-condition steel cutting
• Clamp and screw holding method for secure seating in standard toolholders

Compatibility

Designed for use in DNMX-style indexable turning toolholders that accept a 0.5-inch inscribed circle, 55-degree diamond insert with clamp or screw holding. Compatible with toolholder systems specifying ISO clearance code N and tolerance code M per the DNMX 15 04 12 insert specification.

Installation Notes

This insert is installed by a machinist or CNC operator following standard indexable tooling procedures. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key to secure the clamp or screw to the manufacturer-specified feel — do not overtighten, as this can crack the carbide. Inspect the toolholder pocket and seating surfaces for chips or debris before seating the insert.