Sandvik Coromant 5740643 Turning Insert RCMT22-SM 1125

Product Description

The SANDVIK COROMANT 5740643 is a round carbide turning insert designed for precision metal-cutting operations on CNC lathes and turning centers. It carries the RCMT22-SM 1125 designation, placing it in the CoroTurn 107 series. The insert features a TiAlN and AlCr2O3 PVD coating applied over a solid carbide substrate, providing wear resistance and thermal stability at the cutting edge. With a 0.25-inch inscribed circle and a neutral hand orientation, it is screw-held and suited for profiling and finishing passes. Machinists and CNC operators working in precision shops or job-shop environments install this insert as a standard indexable tooling component.

This insert is engineered primarily for stainless steel (ISO material group M) and secondarily for superalloys and titanium (ISO material group S). The SM chip breaker geometry is optimized for these tough, work-hardening materials, helping control chip formation and reduce built-up edge. It is appropriate for both production and repair turning applications where consistent surface finish and tool life are required. The ISO code for this insert is RCMT060300SM1125, and it is sold individually with a minimum order quantity of 10 units.

Key Features

• Round insert shape (code R) with 4 cutting edges for maximum indexing value
• TiAlN and AlCr2O3 PVD coating for thermal resistance and reduced flank wear
• SM chip breaker geometry optimized for stainless steel, superalloys, and titanium
• Screw-held mounting (RCMT style) with 7-degree relief angle and neutral hand
• 0.25-inch inscribed circle, 0.125-inch insert thickness, 0.1102-inch hole diameter
• Part of the CoroTurn 107 series for consistent OEM-grade tooling interchangeability

Compatibility

Designed for use in CoroTurn 107 series toolholders that accept RCMT 06 03 00 style round inserts. Compatible workpiece materials include stainless steel (ISO M), superalloys, and titanium (ISO S) as specified by the manufacturer. Refer to the SANDVIK COROMANT CoroTurn 107 toolholder catalog to confirm compatible holder bodies before installation.

Installation Notes

This insert is installed and indexed by a CNC machinist or toolroom technician. Always power down and lock out the machine spindle before changing inserts. Seat the insert fully in the pocket before tightening the clamping screw, and inspect the pocket seat for chips or debris that could affect insert seating. Follow the toolholder manufacturer torque guidance for the clamping screw to avoid cracking the carbide substrate.