Sandvik CNMG 120408 Carbide Turning Insert - GC4325 Universal Grade
Sandvik CNMG 120408 Carbide Turning Insert — Premium Universal Grade
The Sandvik Coromant CNMG 120408 is a high-performance carbide turning insert engineered for universal machining of steel (ISO P), stainless steel (ISO M), and cast iron (ISO K).
Manufactured by Sandvik Coromant — the world leader in metal cutting — this 80° rhombic insert delivers exceptional tool life, consistent surface finish, and reliable chip control across a wide range of turning operations.
Available in GC4325 and GC4315 grades with Inveio™ coating technology. Sourced directly from authorized Sandvik distribution channels, ensuring 100% genuine quality for your CNC and conventional turning applications.
✦ Key Features
- Sandvik Inveio™ Coating — Uni-directional crystal orientation for superior wear resistance and longer tool life
- Universal Application — Suitable for medium roughing to finishing in steel, stainless steel, and cast iron
- Optimized Chipbreaker — PM, MM, and MR geometries available for different cutting conditions
- 80° Rhombic Shape (C-Type) — Versatile negative insert for multiple cutting directions
- Consistent Performance — Tight tolerance manufacturing ensures repeatable results
✦ Specifications
| Insert Shape | CNMG — 80° Rhombic (Negative) |
| ISO Designation | CNMG 120408 / CNMG 120404 |
| Inscribed Circle | 12.7 mm |
| Thickness | 4.76 mm |
| Corner Radius | 0.8 mm (120408) / 0.4 mm (120404) |
| Grade | GC4325 / GC4315 / GC4335 |
| Coating | CVD Inveio™ (TiCN + Al₂O₃ + TiN) |
| Application | ISO P (Steel), ISO M (Stainless), ISO K (Cast Iron) |
| Cutting Direction | Neutral — Left and Right Hand |
| Manufacturer | Sandvik Coromant (Sweden) |
✦ Compatible Tool Holders
CNMG 120408 inserts fit standard ISO clamping toolholders including: PCLNR/L 2525M12, MCLNR/L 2525M12, and DCLNR/L 2525M12. Available from SAN Tools in right-hand and left-hand configurations.
✦ Applications
- ▸ General steel turning — carbon steel, alloy steel, tool steel
- ▸ Stainless steel machining — austenitic, ferritic, duplex grades
- ▸ Cast iron turning — grey, nodular, and malleable cast iron
- ▸ Medium roughing to semi-finishing operations
- ▸ Continuous and light interrupted cuts
✦ Why Buy from SAN Tools?
- 🏭 Authorized Supplier Since 1987 — Nearly 40 years serving UAE manufacturing
- ✅ 100% Genuine Products — Direct sourcing guarantees authentic Sandvik quality
- 🚚 Same-Day Delivery in Dubai — In-stock items delivered same day
- 🔧 Technical Support — Expert advice on grade selection, speeds, and feeds
- 💰 Competitive Pricing in AED — Best value for Sandvik inserts in UAE
✦ Frequently Asked Questions
What is the difference between CNMG 120408 and CNMG 120404?
The last two digits indicate corner radius: 08 = 0.8mm radius (general purpose), 04 = 0.4mm radius (finer finishing).
Which Sandvik grade should I choose?
GC4325 is the first-choice grade for steel turning. GC4315 is optimized for higher speeds, while GC4335 handles interrupted cuts better.
Do you ship Sandvik inserts across the UAE?
Yes — SAN Tools delivers to all Emirates including Abu Dhabi, Sharjah, Ajman, RAK, Fujairah, and Al Ain.