Sandvik Coromant 5781780 Turning Insert Dcgw 7015 Carbide

Product Description

The SANDVIK COROMANT 5781780 is a solid carbide turning insert in the DCGW21.51S0330F 7015 series, designed for precision metal cutting operations on hard workpiece materials. This insert features a 55-degree diamond shape (Insert Shape Code D) with a neutral hand orientation and carries a Titanium Nitride (TiN) coating applied via PVD process. The manufacturer grade 7015 designates it for hard material applications. With a 1/4-inch inscribed circle, a 1/64-inch corner radius, and two cutting edges, this insert delivers consistent tool life in demanding turning applications. It is part of the CoroTurn 107 series and is secured via screw-style insert holding.

This insert is suited for finish and semi-finish turning of hard materials in both CNC lathe and turning center applications. The CoroTurn 107 series is commonly used in external turning operations where close tolerances and surface finish quality are priorities. The DCGW style with clearance code C and tolerance code G makes this insert appropriate for light cuts on hardened steel and similar difficult-to-machine materials. Licensed machinists and CNC tool room technicians typically spec this insert for high-precision production and job shop environments.

Key Features

• Solid carbide substrate with PVD-applied Titanium Nitride (TiN) coating for wear resistance on hard materials
• 55-degree diamond insert shape provides a sharp, acute cutting geometry suited for profiling and finishing passes
• 1/64-inch (0.0156-inch) corner radius for fine surface finish on precision turned components
• Two cutting edges per insert for extended tooling value
• Screw-style insert holding (Insert Holding Method: Screw) ensures secure, repeatable seating in compatible toolholders
• Wiper geometry with chip breaker code W for controlled chip formation during hard material turning

Compatibility

Designed as an OEM-style replacement turning insert for CoroTurn 107 series toolholders accepting DCGW-style inserts with a screw-type clamping method. Confirm toolholder compatibility by matching insert style, inscribed circle, and thickness specifications before installation.

Installation Notes

Insert installation should be performed by a qualified machinist or CNC tooling technician with the machine powered down and spindle locked. Use the appropriate Torx or hex key driver as specified by the toolholder manufacturer to seat the clamping screw — do not over-torque the screw. Inspect the insert pocket and seating surface for chips or debris before installing a fresh insert. Always follow the machine tool manufacturer and cutting tool manufacturer guidelines for feed rate and depth of cut when running this insert grade on hard materials.