Sandvik Coromant 5724981 Turning Insert CCMT431MM 1105

Product Description

The SANDVIK COROMANT 5724981 is a solid carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. Designated by ISO code CCMT120404MM1105, this insert features an 80-degree diamond shape, a 7-degree relief angle, and a TiAlN2 coating applied via PVD process. The MM chip breaker geometry promotes controlled chip evacuation across a range of cutting depths. With a 0.5-inch inscribed circle and an insert length of 12.90 mm (0.5079 inches), it delivers consistent performance in finish and semi-finish turning. It is installed by CNC machinists and toolroom technicians working in production or job-shop environments.

This insert is part of the CoroTurn 107 series and is optimized primarily for steel (ISO material group P) and secondarily for stainless steel (ISO material group M). The neutral hand orientation makes it suitable for standard right-hand toolholders configured for CCMT-style seating. Typical applications include shaft turning, facing, and contour turning on medium to light cuts. The screw-clamping holding method provides secure, repeatable insert positioning for dimensional consistency across multiple edges.

Key Features

• 80-degree diamond insert shape (CCMT) with 7-degree relief angle for versatile turning geometry
• TiAlN2 PVD coating in manufacturer grade 1105 for wear resistance on steel and stainless steel
• MM chip breaker geometry for controlled chip formation in finish and semi-finish cuts
• Maximum depth of cut: 12.50 mm (0.4921 inches)
• 2 cutting edges per insert for extended tool life per unit
• Screw-clamping insert holding method for secure, repeatable seating

Compatibility

Designed as an OEM-style replacement and standard fit for CCMT-style toolholders in the CoroTurn 107 series. Compatible with screw-clamp toolholders accepting a CCMT 431 insert seat. Verify toolholder designation against the ISO code CCMT120404MM1105 before installation.

Installation Notes

Installation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key to the toolholder manufacturers specified torque procedure when securing the clamping screw — do not overtighten, as this can fracture the carbide insert. Inspect the insert seat and chip pocket for debris before seating a new edge.