Tungaloy 6781046 Turning Insert DCMT070204-PS T9225

Product Description

The TUNGALOY 6781046 is a DCMT-style turning insert in the T9225 grade, designed for precision metal cutting in CNC and manual turning applications. Built from carbide substrate with a multilayer CVD coating of TiN, TiCN, and Al2O3, this insert delivers wear resistance and thermal stability across a range of workpiece materials. The 55-degree diamond shape (Insert Shape Code D) provides a sharp, versatile geometry suited to general turning, facing, boring, back turning, and back boring. With a 1/4 inch inscribed circle, a 0.0157 inch corner radius, and a positive rake angle of 10 degrees, the insert is engineered for consistent chip control and surface finish on steel, stainless steel, and cast iron.

This insert is intended for use in screw-clamped toolholders accepting the DCMT insert style with a 7-degree relief angle and M-tolerance. It carries a PS chip breaker geometry optimized for continuous and semi-interrupted cuts in steel and stainless steel at material grades P15 and P25. Suitable for production turning environments where consistent tool life and dimensional accuracy are priorities, this insert is installed by machinists and CNC operators working in job shop, contract manufacturing, and production machining settings.

Key Features

• Multilayer CVD coating (TiN / TiCN / Al2O3 / TiN) for high wear resistance and thermal protection
• T9225 grade optimized for steel and stainless steel at P15 and P25 material grades
• PS chip breaker geometry supports turning, facing, boring, back turning, and back boring
• 55-degree diamond insert shape with positive rake and honed cutting edge for clean engagement
• Screw-clamped holding method for secure, repeatable indexing
• Two cutting edges per insert; neutral hand orientation

Compatibility

Designed for screw-clamped DCMT-style toolholders accepting a 1/4 inch inscribed circle, M-tolerance, 7-degree clearance angle insert. Compatible with primary workpiece materials Steel (P), Stainless Steel (M), and Cast Iron (K). Conforms to ANSI and ISO standards; ISO code DCMT070204-PS, Industry Standard Number DCMT 21.51 PS.

Installation Notes

Installation is performed by machinists or CNC operators. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key for the clamping screw and ensure the insert seats fully and cleanly in the pocket before tightening. Inspect the insert pocket and clamping screw for wear or debris prior to each installation to maintain dimensional accuracy and safe operation.