Sandvik Coromant 5730900 Turning Insert DCMT32.52-PM 1525

Product Description

The SANDVIK COROMANT 5730900 is a solid carbide turning insert manufactured to ISO designation DCMT 11 T3 08-PM 1525. It features a 55-degree diamond shape (Insert Shape Code D) with a 7-degree relief angle and a PM-style chip breaker geometry suited for general turning operations. The insert carries a dual-layer TiCN and TiN coating for wear resistance and extended tool life in steel and cast iron applications. The inscribed circle measures 3/8 inches (0.3750 inches), insert length is 0.4263 inches, and insert thickness is 5/32 inches (0.1563 inches). The corner radius is 1/32 inches (0.0313 inches). The screw-hole diameter measures 0.1732 inches, and the insert is secured by a screw-style holding method.

This insert is designed for CNC turning centers and manual lathes used in metalworking applications where consistent chip control and surface finish are required. The DCMT style with PM chip breaker geometry is a common choice for medium-duty external and internal turning of steel components. Licensed machinists, toolroom operators, and CNC programmers working in production and job-shop environments select this grade for its balance of toughness and wear resistance. The Manufacturer Grade 1525 is positioned for steel turning at moderate cutting speeds and feed rates.

Key Features

• Solid carbide substrate with TiCN and TiN dual-layer PVD/CVD coating for wear resistance
• 55-degree diamond insert shape provides two usable cutting edges per insert
• PM chip breaker geometry for controlled chip evacuation during medium-duty turning
• 7-degree relief angle (Clearance Code C) reduces flank wear in continuous cuts
• Screw-style insert holding method (Tolerance Code M) for repeatable seating and indexing
• ISO designation DCMT 11 T3 08-PM 1525 for cross-referencing to equivalent grades

Compatibility

Designed as an OEM-style replacement turning insert for tool holders accepting DCMT-style inserts with a 55-degree diamond geometry, screw clamping, and 3/8-inch inscribed circle. Verify holder pocket geometry and clamping system against the ISO DCMT 11 T3 08 specification before installation.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist or toolroom technician. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key to tighten the clamping screw to the tool holder manufacturer's specified torque — do not exceed the holder specification. Inspect the insert pocket and seating surface for chips or debris before seating the new insert to ensure proper contact and repeatability.