TaeguTec CNMG120408MT TT5080 | Heavy-Duty Cast Iron Turning Insert
✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
TaeguTec CNMG120408MT TT5080
The Shock-Resistance Champion: High-Toughness CVD Grade for Demanding Cast Iron Operations
Product Overview
"Which carbide insert grade is most reliable for interrupted turning on abrasive gray or ductile iron castings?"
The TaeguTec CNMG120408MT TT5080 is an 80° rhombic turning insert purpose-built for ISO K (Cast Iron). While standard inserts often suffer from thermal cracking or edge chipping in cast iron, the TT5080 CVD grade features a specialized thick alumina coating and a high-toughness substrate designed to absorb mechanical impact. The MT (Medium-Tough) chipbreaker provides a reinforced cutting edge that excels in unstable conditions, while the 0.8mm radius offers increased edge strength for heavier depths of cut and roughing-to-finishing versatility.
Key Features
Thick thermal and abrasive barrier coating engineered specifically for the unique wear patterns of cast iron.
Reinforced geometry prevents micro-chipping even when machining through rough casting skins or blowholes.
A sub-micron tough substrate that provides the stability needed for heavy interrupted cuts and non-rigid setups.
Technical Specifications
ISO Code Decoding: CNMG120408MT
80° Rhom
0° Relief
Tolerance
Fixing
12.7mm L
4.76mm S
0.8mm RE
Medium
| Unit System | Designation | I.C. Size | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120408MT | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | CNMG432MT | 0.500" | 0.031" |
Recommended Cutting Parameters (ISO K)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Gray Cast Iron (HB 180-250) | 150 - 320 m/min | 0.15 - 0.45 mm/rev |
| Ductile Iron (HB 160-250) | 120 - 280 m/min | 0.12 - 0.40 mm/rev |
Compatible Toolholders
This insert fits all standard DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 toolholders and boring bars.
Product Applications
- Roughing to medium turning of engine blocks, pump housings, and brake discs.
- Interrupted cutting on large cast iron gears and agricultural machinery parts.
- Machining gray and nodular cast iron with inconsistent material hardness.
- Heavy-duty CNC operations where tool life predictability is critical.
TaeguTec Cast Iron Grade Comparison
| Grade Name | Technology Profile | Primary Application |
|---|---|---|
| TT5080 (CVD) | Maximum Toughness | Interrupted Cuts: Shock resistance focus. |
| TT5100 (CVD) | Wear Resistance | Continuous: High-speed finishing. |
Why Choose TaeguTec?
A flagship brand within the IMC Group, TaeguTec leads the global industry in difficult-to-cut material solutions. The TT5080 grade represents the peak of cast iron machining technology, engineered to handle the thermal and mechanical stresses of modern high-volume manufacturing. When you choose TaeguTec, you invest in industrial-grade consistency that reduces machine downtime, prevents scrap parts, and ensures the lowest cost-per-cut in professional CNC workshops.
Verified Global Feedback
"Reliable on Rough Castings"
We machine raw gray iron housings. Switched to TT5080 because our previous inserts were shattering on the surface skin. These take the hit and keep going.
— Cast Components Inc. (USA)"Top Tier for Ductile Iron"
Predictable tool life is everything for us. The TT5080 is remarkably consistent. The 0.8mm radius gives a very strong edge.
— Gusswerke Schmidt (Germany)"Great for Interrupted Cuts"
Our part has four bolt holes on the face. The MT chipbreaker handles the interruption perfectly. Very stable performance on our CNC lathes.
— Precision Industry (Japan)Frequently Asked Questions
1. Is TT5080 better for finishing or roughing?
The 0.8mm radius and MT breaker make it ideal for roughing and medium turning. For high-speed finishing on stable surfaces, we suggest our TT5100 grade.
2. Can I use this on Steel (ISO P)?
While it can turn some steels, its coating is optimized for the abrasive wear of Cast Iron. For steel turning, our TT9225 grade is the standard recommendation.
Need Help With taegutec Inserts?
Looking for a taegutec equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This taegutec insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.