Sandvik Coromant 5730504 Turning Insert DCMT32.52-MM 1125

Product Description

The SANDVIK COROMANT 5730504 is a solid carbide turning insert in the CoroTurn 107 series, designed for external and internal turning operations on CNC lathes and turning centers. Carrying the ANSI designation DCMT32.52-MM 1125 and ISO code DCMT 11 T3 08-MM 1125, this insert features a 55-degree diamond (rhombic) shape, a positive side clearance, and a dual-layer TiAlN plus AlCr2O3 PVD coating. The MM chip breaker geometry supports roughing and medium machining passes. With two cutting edges per insert and screw-type holding, it delivers consistent tool life across demanding applications. Weight is 0.13 pounds.

This insert is rated for primary use on stainless steel (ISO M) and special or super alloys (ISO S), with secondary suitability for carbon and alloy steel, superalloy, and titanium workpieces. The 1125 grade provides high wear resistance with moderate toughness for stainless steel and moderate wear resistance with toughness for super alloys. Typical applications include finish to medium roughing passes on turned components in aerospace, oil and gas, and general engineering environments. A licensed machinist or CNC operator installs and indexes this insert as part of a routine tooling changeover on compatible CoroTurn 107 toolholders.

Key Features

• 55-degree diamond insert shape (DCMT) with positive side clearance for free-cutting action
• Dual PVD coating - TiAlN plus AlCr2O3 - for wear resistance at elevated cutting temperatures
• MM chip breaker geometry suited to roughing and medium machining operations
• Grade 1125 optimized for ISO M stainless steel and ISO S super alloy workpiece materials
• Two usable cutting edges per insert; screw-type insert holding method
• Neutral hand orientation for use in standard toolholder configurations

Compatibility

Designed for use in SANDVIK COROMANT CoroTurn 107 series toolholders accepting DCMT-style inserts with a 3/8-inch inscribed circle. Verify toolholder pocket tolerance and clamping configuration before installation.

Installation Notes

Insert indexing and replacement should be performed by a qualified machinist or CNC tooling technician with the machine in a stopped, locked-out state per applicable safety procedures. Use the correct Torx or hex key to tighten the clamping screw to the toolholder manufacturer's specification - do not overtighten, as this can crack the carbide substrate. Inspect the insert pocket and seating surface for chips or debris before seating the new insert. Confirm correct insert orientation and chip breaker direction before resuming cutting operations.