Sandvik Coromant 5752839 Turning Insert Tcmt Coroturn 107

Product Description

The SANDVIK COROMANT 5752839 is a solid carbide turning insert designed for precision external and internal turning operations. Conforming to the TCMT insert style with a 60-degree triangular shape, this insert features an uncoated bright finish and the KF chipbreaker geometry, which promotes controlled chip formation during light to medium cutting passes. It carries a 5/32-inch inscribed circle, a corner radius of 1/64 inch (0.0156 inch), and an overall length of 0.2449 inches. Manufactured under the H13A uncoated carbide grade, this insert is intended for machinists working with cast iron and non-ferrous metals requiring close dimensional control and clean surface finishes.

The 5752839 belongs to the CoroTurn 107 series, a platform designed for positive-rake turning applications in both external and internal configurations. Its primary workpiece material is cast iron (ISO code K), with a secondary application in non-ferrous metals (ISO code N). The screw-held clamping method and neutral hand orientation make it adaptable to a wide range of toolholder setups. This insert is a common choice in production turning environments where consistent chip control and insert indexing efficiency are priorities for CNC lathe operators and setup machinists.

Key Features

• TCMT insert style with 60-degree triangle shape and 3 usable cutting edges per insert
• KF chipbreaker geometry optimized for controlled chip formation on cast iron and non-ferrous materials
• Uncoated H13A solid carbide grade for sharp edge retention without coating buildup
• 5/32-inch inscribed circle with 1/64-inch corner radius for tight-tolerance turning work
• Screw-held insert retention for secure, repeatable indexing in compatible toolholders
• Neutral hand orientation for use in both right- and left-hand cutting configurations

Compatibility

Designed for use in CoroTurn 107 series toolholders accepting TCMT-style inserts with a 5/32-inch inscribed circle. ISO designation: TCMT 06 T1 04-KF H13A. Verify toolholder pocket specifications before ordering.

Installation Notes

Insert replacement and indexing should be performed by a qualified machinist with the machine powered down and spindle locked. Use the appropriate Torx or hex key to remove and re-torque the clamping screw to the toolholder specification without over-tightening, which can fracture the carbide substrate. Inspect the toolholder pocket seat for wear or debris before seating a new insert. Handle carbide inserts with care — edges are brittle and can chip if dropped or impacted against hard surfaces.