Sandvik Coromant 8232387 Turning Insert CP-B1208D-M5 2025

Product Description

The SANDVIK COROMANT 8232387 is a carbide turning insert in the CoroTurn Prime series, designed for high-performance external turning operations. The insert carries a CVD-applied TiCN + Al2O3 + TiN multilayer coating under manufacturer grade 2025, providing wear resistance and thermal stability during continuous or interrupted cuts. It features an irregular insert shape designated CP-B, with 8 cutting edges per insert, a 12.00 mm inscribed circle (0.4724 inches), and a 0.80 mm (0.0315 inches) corner radius. The M5 chip breaker geometry is paired with a positive rake angle of 7 degrees and a neutral hand orientation. Installation and tool changes are handled by licensed machinists and CNC operators in production or job-shop environments.

This insert is optimized for machining stainless steel (ISO material code M), where edge stability and chip control are critical. The CoroTurn Prime CP-B geometry enables both axial and radial cutting paths, making it suitable for finishing and semi-finishing passes on stainless workpieces in both conventional and multi-task turning setups. The screw and clamp holding method ensures rigid seating in compatible CoroTurn Prime toolholders. The insert thickness is 6.00 mm (0.2362 inches), and the hole diameter is 5.16 mm (0.2030 inches) for toolholder alignment.

Key Features

• CVD-coated TiCN + Al2O3 + TiN multilayer coating for thermal and abrasion resistance
• 8 usable cutting edges per insert for extended tooling economy
• 12.00 mm inscribed circle with 0.80 mm corner radius for controlled finishing passes
• Positive 7-degree rake angle with M5 chip breaker geometry optimized for stainless steel
• Neutral hand orientation for flexible toolholder pairing
• Screw and clamp holding method for secure, repeatable seating

Compatibility

Designed for use in CoroTurn Prime CP-B series toolholders that accept the CP-B1208 insert size. Intended primarily for stainless steel (ISO M-material) turning applications. Verify toolholder seat and clamping specifications before installation.

Installation Notes

Insert installation and indexing should be performed by a qualified machinist following the toolholder manufacturer's torque and clamping procedure. Power down and de-energize the machine tool before changing inserts, and confirm the insert seats fully and evenly in the pocket before resuming operation. Do not exceed the cutting parameters specified in the grade 2025 application data for stainless steel. Inspect the insert seat and clamp for wear or contamination each time the insert is indexed.