Sandvik Coromant 5725717 Turning Insert CNMM643QR 235

Product Description

The SANDVIK COROMANT 5725717 is a CNMM-style indexable turning insert designed for high-productivity external turning operations on CNC lathes and turning centers. It features a CVD-applied dual-layer TiCN and TiN coating over a solid carbide substrate, assigning it to manufacturer grade 235. The insert measures 19.34 mm (0.7614 inches) in length with a 3/4-inch inscribed circle and a 3/64-inch (1.20 mm) corner radius. The 80-degree diamond shape and neutral hand orientation make it well suited for finishing and semi-finishing passes where edge geometry and coating integrity are critical. Licensed machinists and CNC operators install and index these inserts during routine tooling changes.

This insert belongs to the SANDVIK COROMANT T-Max P series and carries ISO code CNMM190612QR235 with the QR chip breaker geometry. The primary target workpiece material is steel (ISO material code P), with secondary suitability for stainless steel (ISO material code M). The clamp-and-pin holding method is compatible with standard CNMM toolholders. It provides up to 18.14 mm maximum depth of cut and delivers two usable cutting edges per insert, making it a productive choice for medium to heavy turning applications in production shop environments.

Key Features

• CVD-coated TiCN plus TiN layers on a solid carbide substrate for wear resistance in steel and stainless steel turning
• QR chip breaker geometry optimized for controlled chip evacuation in medium to heavy cuts
• 80-degree diamond insert shape (insert shape code C) provides a strong cutting edge with good approach-angle flexibility
• Two cutting edges per insert for extended tool economy
• Maximum depth of cut of 18.14 mm (0.7142 inches) supports aggressive material removal rates
• Clamp and pin holding method ensures rigid seating in CNMM-compatible toolholders

Compatibility

Designed for use in CNMM-style toolholders within the SANDVIK COROMANT T-Max P turning system. Compatible with standard CNMM 19 06 toolholder seats. Verify toolholder bore and clamp style before installation. No additional specific model compatibility data was provided in the product input.

Installation Notes

Indexable turning inserts are installed and changed by CNC machinists or tool-crib technicians; always power down and lock out the spindle before accessing the toolholder. Seat the insert fully against the pocket locating surfaces before tightening the clamp screw or pin to prevent micromovement during cutting. Inspect the insert pocket for chips, wear, or debris that could affect seating accuracy prior to each index. Follow the machine builder and toolholder manufacturer torque guidance for clamp hardware.