Sandvik Coromant 5730945 Turning Insert Dcmt 55 Diamond

Product Description

The SANDVIK COROMANT 5730945 is a solid carbide turning insert in the DCMT style, designed for precision external turning operations. It carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiN under the manufacturer grade designation 1515, providing wear resistance and thermal stability during continuous and light-interrupted cuts. The insert measures 0.442 inches in length with a 3/8-inch inscribed circle and a 1/64-inch corner radius. It belongs to the CoroTurn 107 series and is intended for screw-clamped toolholders. Installation and selection are typically handled by machinists, CNC programmers, and tooling specialists working in production turning environments.

This insert is primarily suited for turning steel workpieces and is also rated for stainless steel applications. The PF chip breaker geometry is optimized for finishing and light roughing passes where chip control and surface finish are critical. It is a neutral-hand insert, making it adaptable to standard right-hand and left-hand toolholder configurations. Typical applications include shaft turning, facing, and profiling on CNC lathes in job-shop and production settings. The 55-degree diamond shape provides a relatively sharp nose angle suited to profiling and contour turning where clearance angles matter.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life in steel cutting
• PF chip breaker geometry for finishing and light roughing with reliable chip control
• 55-degree diamond insert shape (DCMT style) with 7-degree relief angle for profiling versatility
• 1/64-inch (0.0156 inch) corner radius for tight-tolerance finishing cuts
• Screw-clamped insert holding method compatible with CoroTurn 107 toolholders
• Rated for primary use on steel (ISO P) and secondary use on stainless steel (ISO M)

Compatibility

Designed for use with CoroTurn 107 series screw-clamped toolholders accepting DCMT-style inserts with a 3/8-inch inscribed circle. ISO code for this insert is DCMT 11 T3 04-PF 1515.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or tooling technician with the machine fully stopped and locked out per applicable shop safety procedures. Use the correct Torx or hex key as specified by the toolholder manufacturer when tightening the clamping screw — do not overtighten. Inspect the insert pocket and seating surface for chips or debris before seating the new insert. Verify insert orientation and confirm neutral-hand designation matches the toolholder configuration before resuming cutting operations.