Sandvik Coromant 6868242 Turning Insert CCMT32.52-KR

Product Description

The SANDVIK COROMANT 6868242 is a CCMT-style indexable turning insert from the CoroTurn 107 series, designed for precision external and internal turning operations on CNC lathes and turning centers. The insert is manufactured from solid carbide and carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which delivers wear resistance and thermal stability during continuous cutting. The insert shape is an 80-degree diamond (C-shape), and the neutral hand orientation makes it suitable for both right- and left-hand toolholders in the matching CCMT pocket style. Chip control is handled by the KR chip breaker geometry, which is optimized for cast iron workpieces.

This insert is intended for medium to finish turning applications in cast iron (ISO material group K). The CoroTurn 107 series is widely used in production environments where secure screw clamping and consistent edge positioning are required. With a maximum depth of cut of 8.87 mm, this insert handles both light finishing passes and moderate roughing cuts on ferrous materials. It is installed by licensed machinists and CNC operators as a direct drop-in for CCMT 09 T3 08-KR 3225 toolholder pockets.

Key Features

• CVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life in cast iron cutting
• 80-degree diamond insert shape with 7-degree relief angle for positive clearance
• KR chip breaker geometry engineered for cast iron chip control
• Screw-clamp insert holding method ensures repeatable seating and edge indexing
• 2 cutting edges per insert with rounded cutting edge style
• Maximum depth of cut of 8.87 mm supports light roughing through finish turning

Compatibility

This insert is identified by ISO code CCMT 09 T3 08-KR 3225 and fits CCMT-style toolholders with the corresponding pocket geometry. It is part of the Sandvik Coromant CoroTurn 107 series and is compatible with screw-clamp toolholders designed for CCMT 09 T3 insert pockets.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate Torx or hex key specified by the toolholder manufacturer to secure the clamping screw — do not overtighten. Inspect the toolholder pocket for chips or wear before seating the new insert to ensure proper contact and edge repeatability.