Sandvik Coromant 5730692 Turning Insert DCMT32.50-MF 1125

Product Description

The SANDVIK COROMANT 5730692 is a DCMT32.50-MF 1125 solid carbide turning insert designed for precision finishing operations on CNC lathes and turning centers. Part of the CoroTurn 107 series, it features a 55-degree diamond (rhombic) insert shape with a positive side clearance and a 0.2 mm corner radius for tight-tolerance finish cuts. The dual-layer TiAlN and AlCr2O3 PVD coating delivers high wear resistance when machining stainless steel, superalloys, and titanium. With two cutting edges per insert, this grade 1125 insert is suited for high-productivity turning programs where tool life and surface finish consistency are critical. Machinists and CNC operators working in job shops, aerospace, and general manufacturing will find this insert well-matched to demanding finishing applications.

The 5730692 is engineered for finishing-pass turning on stainless steel (ISO M), steels (ISO P), superalloys, and titanium (ISO S). It fits screw-clamped toolholders designed for DCMT-style inserts with a 3/8-inch inscribed circle. The MF chip breaker geometry is optimized for light cuts and smooth chip evacuation, making it appropriate for close-tolerance work on difficult-to-machine materials. Applications include external and internal finish turning on components such as shafts, flanges, and aerospace structural parts where surface integrity and dimensional accuracy are priorities.

Key Features

• DCMT diamond (55-degree rhombic) insert shape with positive side clearance for reduced cutting forces
• TiAlN and AlCr2O3 PVD dual-layer coating for high wear resistance on stainless steel and superalloys
• MF chip breaker geometry optimized for finishing operations and clean chip control
• Grade 1125 provides a balance of wear resistance and toughness across ISO M and S workpiece materials
• Two cutting edges per insert for extended usable tool life per unit
• Screw-clamping insert holding method for rigid, repeatable seating in the toolholder pocket

Compatibility

Designed for use in CoroTurn 107 series screw-clamped toolholders accepting DCMT-style inserts with a 3/8-inch inscribed circle. Compatible workpiece materials include steel (ISO P), stainless steel (ISO M), superalloys, and titanium (ISO S) as specified in the grade 1125 characteristics.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist or CNC tooling technician. Always power down and lock out the machine spindle before changing inserts. Inspect the toolholder pocket for wear, chips, or debris before seating a new insert, as contamination in the pocket will affect insert stability and surface finish. Torque the clamping screw to the toolholder manufacturer specification — do not estimate by feel, as under- or over-torquing compromises edge security during cutting.