Sandvik Coromant 5730744 Turning Insert Dcmt Coroturn 107

Product Description

The SANDVIK COROMANT 5730744 is a DCMT-style turning insert from the CoroTurn 107 series, designed for external turning operations on CNC lathes. This solid carbide insert features a multilayer CVD coating of TiCN, Al2O3, and TiN, which builds wear resistance and extends tool life in demanding cutting conditions. The 55-degree diamond shape (insert shape code D) provides a relatively sharp point angle suited to profiling and finishing passes. With a 3/8-inch inscribed circle, a 0.4263-inch insert length, and a 1/32-inch corner radius, this insert fits standard DCMT toolholders secured via screw clamping. It is rated for Manufacturer Grade 3210 and carries a neutral hand designation. Licensed machinists and CNC operators are the primary users.

This insert is optimized for machining cast iron (ISO material code K) in applications where controlled chip formation is critical. The KM chip breaker geometry is engineered to manage chips effectively during medium to finishing cuts. The CoroTurn 107 series is intended for use with corresponding SANDVIK COROMANT toolholders that accept DCMT inserts with screw-on holding. The 7-degree relief angle and M tolerance code make this insert suitable for precision turning where dimensional consistency across cutting edges is required. Typical applications include production turning of cast iron housings, brackets, and rotating components in automotive and industrial manufacturing environments.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for high wear resistance on cast iron
• 55-degree diamond insert shape with 1/32-inch corner radius for profiling and finishing
• KM chip breaker geometry for controlled chip formation in medium to finish cuts
• Screw-on insert holding method compatible with standard DCMT toolholders
• Neutral hand orientation for flexible toolholder compatibility
• 2 cutting edges per insert

Compatibility

Designed for use in SANDVIK COROMANT CoroTurn 107 series toolholders accepting DCMT inserts. ISO code DCMT 11 T3 08-KM 3210. Compatible toolholders use screw clamping (clearance code C, tolerance code M). Primary workpiece material is cast iron (ISO code K).

Installation Notes

Insert installation and indexing should be performed by a qualified machinist with the machine in a full stop, lockout/tagout state. Use the correct torx or hex key as specified by the toolholder manufacturer when seating the clamping screw — do not overtighten. Inspect the toolholder pocket and clamping screw for wear or debris before seating a new insert. Verify insert seating is fully flush before resuming cutting operations.