TaeguTec SCMT09T308-MT TT9225 | Square Stainless Steel Turning Insert
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TaeguTec SCMT09T308-MT TT9225
The Industrial Benchmark for Stainless Steel: High-Toughness CVD Coating Technology
Product Overview
"Which positive square insert is most reliable for turning 304 and 316 stainless steel when faced with varying depths of cut and interrupted surfaces?"
The TaeguTec SCMT09T308-MT TT9225 is a specialized high-performance solution for ISO M (Stainless Steel). The TT9225 grade utilizes a multi-layered CVD coating optimized for thermal stability and resistance to built-up edge (BUE). Unlike standard grades, TT9225 excels in tougher environments where vibration or mechanical shock is present. The MT (Medium) chipbreaker geometry reduces cutting forces and effectively breaks chips even in gummy austenitic steels. With its 0.8mm nose radius, this insert provides a durable edge for medium turning and semi-finishing, ensuring maximum tool life in aggressive CNC production environments.
Key Features
A perfect hybrid of wear resistance and toughness, specifically formulated for the high-heat zones of stainless steel cutting.
Optimized rake and land design ensures consistent chip breaking across a wide range of feed rates and depths of cut.
Smooth coating surface prevents workpiece material from welding to the edge, resulting in superior surface Ra quality.
Technical Specifications
ISO Code Decoding: SCMT09T308-MT
Square 90°
7° Relief
Tolerance
Hole/Sint
9.52mm IC
3.97mm S
0.8mm RE
Med Chip
| Unit System | Designation | I.C. (Inscribed Circle) | Thickness (S) |
|---|---|---|---|
| Metric (ISO) | SCMT09T308-MT | 9.52 mm | 3.97 mm |
| Imperial (ANSI) | SCMT32.52-MT | 0.375" | 0.156" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (M) | 120 - 250 m/min | 0.10 - 0.35 mm/rev |
| Duplex Stainless (M) | 80 - 160 m/min | 0.10 - 0.30 mm/rev |
Compatible Toolholders
This SCMT 09 series insert fits all standard 90° square positive holders. Best paired with: SSKCR/L 09, SCKCR/L 09, or S-SCKCR 09 series boring bars.
Product Applications
- Medium-duty turning and semi-finishing of austenitic stainless steels (304, 316).
- Interrupted cutting in duplex and super-duplex stainless steel components.
- CNC machining of pump shafts, valves, and aerospace fasteners.
- High-efficiency boring where chip evacuation is critical to avoid workpiece damage.
TaeguTec Grade Benchmarking
| Grade Name | Coating Type | Primary Strength |
|---|---|---|
| TT9225 | Advanced CVD | Toughness Specialist: Ideal for interrupted cuts in stainless. |
| TT9215 | CVD Wear-Resistant | Speed: Optimized for high-speed continuous finishing. |
Why Choose TaeguTec?
TaeguTec is a global pioneer in tungsten carbide technology, and the SCMT 09T308-MT TT9225 is a testament to our industrial expertise in stainless steel turning. We understand that ISO M materials are notorious for their work-hardening properties and gummy nature. Our TT9225 grade is engineered with a specialized multi-layer coating that acts as a thermal barrier, protecting the substrate from sudden failure while maintaining a sharp edge. The MT chipbreaker is the result of rigorous field testing, ensuring that your machine runs smoother and your tools last longer. Choose TaeguTec for precision, reliability, and world-class performance.
Verified Global Feedback
"Flawless in 316L"
We were struggling with edge chipping on our duplex parts. Switched to TT9225 and tool life increased by 40%. The toughness is unmatched.
— Precision Marine Components (USA)"Hervorragende Spanabfuhr"
Outstanding chip control with the MT geometry. No more "bird nesting" around the tool holder in our automated cell.
— Müller Zerspanungstechnik (Germany)"Ottima per Inox"
Excellent surface finish even after 2 hours of cutting. The coating stays intact much better than other brands we've tested.
— Meccanica di Precisione (Italy)"Very Versatile"
A very reliable grade for a mix of continuous and light interrupted cuts. Good balance of speed and durability.
— Sato Precision Works (Japan)Frequently Asked Questions
1. Is TT9225 suitable for heavy interrupted cuts?
Yes, TT9225 is specifically designed for toughness. For extremely severe interruptions or very unstable setups, ensure your tool holder is rigid and decrease feed by 10%.
2. Can I use this for finish turning?
The 0.8mm radius and MT chipbreaker are great for semi-finishing. For ultra-fine surface finishes with very low depths of cut, consider a 0.4mm radius (SCMT09T304).
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.