TaeguTec CNMG160612EM TT9225 | Tough CVD Stainless Turning Insert
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TaeguTec CNMG160612EM TT9225
Mastering Stainless Steel: High-Toughness CVD Grade for Stable Industrial Turning
Product Overview
"Which carbide insert grade offers the best versatility for machining both austenitic and duplex stainless steels with unstable cutting conditions?"
The TaeguTec CNMG160612EM TT9225 is a high-performance 80° rhombic insert optimized for ISO M (Stainless Steel). The TT9225 CVD grade is engineered to handle the thermal and mechanical shocks typical of stainless steel turning. Utilizing a specialized coating-substrate adhesion technology, it prevents premature chipping and flank wear. The EM (Medium-Duty) chipbreaker combined with a robust 1.2mm radius provides superior edge strength for heavy-medium machining on CNC lathes.
Key Features
A balanced CVD coating providing excellent wear resistance at high speeds while maintaining high fracture toughness for interrupted cuts.
Specifically designed to control chips in gummy stainless materials, preventing bird-nesting and workpiece damage.
Provides maximum edge reinforcement and heat dissipation, ideal for high feed rates and large-diameter turning.
Technical Specifications
ISO Code Decoding: CNMG160612EM
80° Rhom
0° Relief
Tolerance
Hole/Sint
15.8mm IC
6.35mm S
1.2mm RE
Med-Duty
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG160612EM | 15.875 mm | 1.2 mm |
| Imperial (ANSI) | CNMG543EM | 0.625" | 0.047" |
Recommended Cutting Parameters (ISO M)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Austenitic Stainless (304, 316) | 140 - 240 m/min | 0.15 - 0.45 mm/rev |
| Duplex Stainless Steel | 70 - 130 m/min | 0.15 - 0.35 mm/rev |
Compatible Toolholders
This heavy-duty insert fits all 15.8mm I.C. holders including DCLNR/L 16, PCLNR/L 16, and MCLNR/L 16 external tools and boring bars.
Product Applications
- Heavy turning of stainless steel valve components and pump housings.
- Machining of duplex stainless components in oil and gas and marine industries.
- Large-scale industrial shaft turning in stainless steel 304 and 316.
- General turning in ISO M materials where edge chipping is a concern.
TaeguTec Grade Comparison (Stainless Focus)
| Grade Name | Coating Focus | Best Use Case |
|---|---|---|
| TT9225 (CVD) | High Toughness | Interrupted cuts & general stainless stability. |
| TT9215 (CVD) | High Speed | High-speed continuous turning. |
Why Choose TaeguTec?
A flagship brand within the IMC Group, TaeguTec is a world leader in carbide innovation. The TT9225 grade represents the pinnacle of "balanced" CVD technology—engineered specifically to overcome the work-hardening and gummy characteristics of stainless steel. When you select TaeguTec, you are selecting industrial consistency that reduces scrap rates, increases tool life, and optimizes your CNC throughput.
Verified Global Feedback
"The Standard for Duplex"
We struggled with chipping on duplex valves. Switched to TT9225 and the edge life doubled. The 1.2 radius is incredibly tough.
— Marine Tech Solutions (Germany)"Perfect for Medium Passes"
Finally, a CVD grade that doesn't chip on light interrupted cuts. Excellent chip control on 316 stainless.
— Precision Works Corp (USA)"Reliable Tool Life"
Very predictable wear patterns. Makes automated CNC management much easier. Good value for money.
— Industrial Parts Ltd (Japan)Frequently Asked Questions
1. Is the EM chipbreaker suitable for light finishing?
The EM (Medium-Duty) breaker is optimized for medium machining depths. For very light finishing where depth of cut is low, we recommend the EA or PC geometries.
2. How does TT9225 handle heat?
The CVD coating is specifically designed to provide a thermal barrier. However, for maximum tool life in stainless, high-pressure coolant is always recommended.
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.