TaeguTec CNMG120408MT CT3000 | Cermet Turning Insert for Finishing
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
TaeguTec CNMG120408MT CT3000
Master of Mirror Finishes: High-Speed Cermet Technology for Professional Steel Machining
Product Overview
"Which insert grade provides the best surface Ra when finishing carbon steel at high cutting speeds without tool-edge oxidation?"
The TaeguTec CNMG120408MT CT3000 is an 80° rhombic turning insert purpose-built for ISO P (Steel) finishing. Featuring the advanced CT3000 Cermet (Ceramic-Metal) grade, this insert offers exceptional chemical stability and resistance to built-up edge (BUE). Unlike traditional carbide, Cermet maintains its sharp edge at high temperatures, allowing for mirror-like surface finishes. The MT chipbreaker is designed for medium-to-light finishing, ensuring stable chip control and low cutting resistance across a variety of steel alloys.
Key Features
Superior resistance to oxidation and wear at high speeds compared to standard carbide grades.
Optimized for medium-to-light finishing, providing smooth shearing and reduced spindle vibration.
Designed to achieve the lowest possible surface Ra, eliminating the need for secondary polishing.
Technical Specifications
ISO Code Decoding: CNMG120408MT
80° Rhom
0° Relief
Tolerance
Fixing
12.7mm L
4.76mm S
0.8mm RE
Finishing
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120408MT | 12.7 mm | 0.8 mm |
| Imperial (ANSI) | CNMG432MT | 0.500" | 0.031" |
Recommended Cutting Parameters (ISO P)
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Low Carbon Steel | 280 - 650 m/min | 0.08 - 0.35 mm/rev |
| Alloy Steel | 200 - 450 m/min | 0.10 - 0.30 mm/rev |
Recommended Toolholders
Standard fit for DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external turning and boring bars.
Product Applications
- High-speed finishing of carbon and alloy steel components.
- Precision turning where tight Ra surface finish requirements are mandatory.
- CNC mass production cycles for shafts, sleeves, and engine components.
- Excellent for dry machining of steel where thermal stability is needed.
TaeguTec Cermet Benchmark
| Grade Name | Technology Profile | Primary Application |
|---|---|---|
| CT3000 (Cermet) | Uncoated Ceramic-Metal | Finishing: Highest surface brightness. |
| PV3010 (PVD Cermet) | PVD Coated Cermet | Versatile: Added wear resistance for tough steel. |
Why Choose TaeguTec?
As a premier brand within the IMC Group, TaeguTec represents the pinnacle of industrial cutting technology. The CT3000 series is the result of exhaustive metallurgical engineering, providing the chemical stability needed for professional-grade finishing. By choosing TaeguTec, you are investing in industrial consistency that minimizes tool changes, protects your machinery, and ensures every part meets the highest cosmetic and dimensional standards in global manufacturing.
Verified Global Feedback
"Mirror Finish on 4140"
We switched to CT3000 for finishing cycles. The Ra value is incredible. It looks like the part was polished. Very stable at high speeds.
— Precision Engineering (USA)"Reliable Cermet Grade"
Outstanding performance on carbon steel shafts. The MT chipbreaker works exactly as described even at light feeds. No chatter.
— Maschinenbau Schmidt (Germany)"High Speed Finishing"
Consistent edge life. We run these very fast on our CNC lathes and the dimensional stability is spot on for the entire shift.
— Aero Components (Japan)Frequently Asked Questions
1. Is Cermet suitable for interrupted cuts?
Cermet is more brittle than tungsten carbide. It is primarily recommended for stable, continuous finishing. For interrupted cuts, we recommend TaeguTec's TT9225 grade.
2. Can I use this for Stainless Steel?
Cermet is best optimized for ISO P (Carbon and Alloy Steel). For high-performance stainless steel turning, please use our TT8020 PVD grades.
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.