R390080C857M – R390080C857M | Sandvik

Product Overview

The Sandvik Coromant R390080C857M is a precision tool holder accessory designed for secure and accurate clamping of cutting inserts in CNC machining operations. As a genuine Sandvik Coromant original part, it ensures optimal tool positioning, maximum rigidity, and reliable cutting performance in industrial turning applications.

Key Features:

• Diameter D1: 7.925 mm — Precision-machined mounting dimension for accurate tool setup
• Cylindrical fixing hole — Secure fixing mechanism for stable insert clamping
• Grade 235 — High-quality construction for durability and repeatability
• CVD TiCN+TiN Coating — Wear-resistant surface treatment for long service life
• Compatible with standard Sandvik Coromant turning tool holders and systems

Applications:

Designed for CNC turning center and lathe applications requiring precise insert clamping and tool positioning. Robust construction provides excellent vibration damping and rigidity, contributing to better surface finish quality and extended tool life. Suitable for roughing and finishing operations in steel, stainless steel, and cast iron machining.

Why Choose Sandvik Coromant?

Sandvik Coromant is the world-leading supplier of metal cutting tools and manufacturing solutions, serving the automotive, aerospace, energy, and general engineering industries globally. All genuine Sandvik Coromant products meet the highest quality standards for precision engineering.

For pricing, bulk orders, and worldwide shipping, please contact our sales team.

Technical Specifications