Sandvik Coromant 5723503 Turning Insert CCMT432-KR H13A

Product Description

The SANDVIK COROMANT 5723503 is a solid carbide, uncoated turning insert in the CCMT432-KR H13A geometry, part of the CoroTurn 107 series. It features an 80-degree diamond insert shape (shape code C) with a 7-degree relief angle and a KR chip breaker design. The inscribed circle measures 0.5 inches and the corner radius is 0.0313 inches (1/32 inch). With two cutting edges and a screw-based holding method, this insert is suited for precision turning applications on CNC lathes and turning centers. It is installed by machinists and toolroom professionals requiring consistent, repeatable performance on cast iron and non-ferrous materials.

This insert is designed for turning cast iron (ISO material code K) as its primary workpiece material and non-ferrous metals (ISO material code N) as its secondary application. The CoroTurn 107 series targets general-purpose external and internal turning where a sharp, uncoated carbide edge is preferred over coated alternatives. Typical install scenarios include finishing and semi-finishing passes where edge sharpness and dimensional accuracy are critical. The ISO designation for this insert is CCMT 12 04 08-KR H13A, which serves as a cross-reference for tooling catalogs and machine setup sheets.

Key Features

• Solid carbide substrate with bright/uncoated finish for sharp edge retention on non-ferrous and cast iron workpieces
• KR chip breaker geometry optimized for controlled chip evacuation during turning operations
• 80-degree diamond insert shape provides a strong cutting edge with moderate approach angle flexibility
• Two cutting edges per insert extend usable tool life before replacement
• Screw-clamping insert holding method ensures rigid, repeatable seating in compatible toolholders
• ISO code CCMT 12 04 08-KR H13A enables direct cross-reference to standard toolholder catalogs

Compatibility

Designed for use in CCMT-style screw-clamp toolholders conforming to the CCMT 432 insert size code within the CoroTurn 107 series. Clearance code C and tolerance code M apply. Verify toolholder pocket geometry and screw thread compatibility before installation.

Installation Notes

Insert installation is performed by qualified machinists or toolroom technicians. Power down and lock out the machine spindle before changing inserts. Use the correct torque wrench and manufacturer-specified clamping screw to seat the insert; do not overtighten by hand or use improvised tools that may crack the carbide. Inspect the insert pocket for chips or debris before seating a new insert to ensure proper contact and runout control.