Sandvik Coromant 5750639 Turning Insert SNMG644-QM H13A

Product Description

The SANDVIK COROMANT 5750639 is a solid carbide, uncoated turning insert in the SNMG644-QM H13A designation, part of the T-Max P series. This square-geometry insert features a 90-degree included angle, a neutral hand orientation, and a QM chip breaker geometry designed for demanding turning operations. With 8 available cutting edges and an inscribed circle of 0.75 inches, it delivers consistent performance in high-volume production environments. The H13A uncoated carbide grade is engineered for machining steel and stainless steel with reliable edge retention. Licensed machinists and CNC lathe operators select this insert for rough to semi-finish turning passes where chip control and tool life are priorities.

This insert is suited for turning applications on steel (ISO material code P) and stainless steel (ISO material code M) workpieces. The QM chip breaker geometry supports a broad range of cutting conditions, making it a practical choice for both production shops and job shops running mixed material work. It is held in the tool holder via clamp and pin method and is compatible with standard SNMG-style tool holders. The ISO designation for this insert is SNMG 19 06 16-QM H13A.

Key Features

• Solid carbide, uncoated (bright) H13A grade optimized for steel and stainless steel turning
• QM chip breaker geometry for effective chip control across a wide range of cutting parameters
• 8 cutting edges per insert for extended tool holder utilization
• 90-degree square insert shape (SNMG) with neutral hand orientation
• Corner radius of 0.0625 inches (1.59 mm) for balanced edge strength and surface finish
• Clamp and pin holding method for secure, repeatable seating in the tool holder

Compatibility

Designed for use in SNMG-style turning tool holders that accept 644-series square inserts with a clamp and pin holding method. ISO code SNMG 19 06 16-QM H13A. Verify holder pocket geometry and insert size code 644 compatibility before installation.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench per the tool holder manufacturer specification when tightening the clamp screw — do not overtighten by hand. Inspect the insert pocket and seating surface for chips or debris before seating the new insert to ensure proper contact and repeatable tool offset.