TaeguTec CNMG120404PC TT9215 | High-Speed Steel Finishing Insert
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✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
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💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
TaeguTec CNMG120404PC TT9215
Precision Finishing Master: High-Speed CVD Grade for Superior Steel Surface Integrity
Product Overview
"Which carbide insert grade is the best for achieving tight tolerances and a mirror finish on carbon steel while running at maximum CNC spindle speeds?"
The TaeguTec CNMG120404PC TT9215 is an 80° rhombic insert designed for high-efficiency finishing of ISO P (Steel). The TT9215 CVD grade utilizes advanced Al2O3 coating technology to provide extreme wear resistance and heat insulation, allowing for significantly higher cutting speeds than traditional grades. The PC (Positive Finishing) chipbreaker is ground for sharpness, reducing vibration and cutting force on fine passes, making it the perfect choice for high-precision steel components.
Key Features
Features a thick alumina layer for superior crater wear resistance and thermal protection during continuous high-speed cutting.
A positive rake angle prevents work hardening and ensures smooth chip flow on finishing depths of cut.
Optimized for fine surface finishes and maintaining exact dimensional tolerances on delicate parts.
Technical Specifications
ISO Code Decoding: CNMG120404PC
80° Rhom
0° Relief
Tolerance
Sintered
12.7mm IC
4.76mm S
0.4mm RE
Finish
| Unit System | Designation | I.C. Dimension | Radius (RE) |
|---|---|---|---|
| Metric (ISO) | CNMG120404PC | 12.7 mm | 0.4 mm |
| Imperial (ANSI) | CNMG431PC | 0.500" | 0.015" |
Recommended Cutting Parameters (ISO P)
| Material Group | Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Low Carbon Steel (S20C/S45C) | 280 - 450 m/min | 0.08 - 0.25 mm/rev |
| Alloy Steel (4140/SCM440) | 220 - 380 m/min | 0.10 - 0.22 mm/rev |
Compatible Toolholders
This precision insert fits all standard 12mm holders including DCLNR/L 12, PCLNR/L 12, and MCLNR/L 12 external tools and boring bars.
Product Applications
- High-speed finishing of carbon steel automotive drive shafts.
- Precision turning of alloy steel gears and hydraulic components.
- Mirror-finish machining of high-tolerance steel bearing housings.
- General-purpose precision finishing in mass-production CNC environments.
TaeguTec Grade Comparison (Steel)
| Grade Name | Coating Focus | Best Use Case |
|---|---|---|
| TT9215 (CVD) | High Speed/Wear | Finishing: High-speed steel turning. |
| TT9225 (CVD) | Balanced Toughness | General: Medium to rough steel cuts. |
Why Choose TaeguTec?
A global leader in the IMC Group, TaeguTec represents the absolute frontier of metallurgical innovation. The TT9215 grade is the result of focused research into carbon steel's thermal behavior at high speeds. By choosing TaeguTec, you are investing in unmatched tool consistency, enabling your machine shop to reduce cycle times and achieve superior profitability through precision engineering.
Verified Global Feedback
"Exceptional Surface Quality"
We use these for finishing 1045 steel pins. The PC breaker is incredibly sharp—the surface finish is flawless and tool life is excellent at 350 m/min.
— Precision Components (USA)"High Speed Reliability"
Finally a grade that doesn't burn out during long finishing runs on alloy steel. TT9215 is remarkably consistent.
— Machining GmbH (Germany)"Perfect for Tight Specs"
The 0.4mm radius maintains dimensional accuracy perfectly. Very predictable wear pattern makes it easy to manage our tool changes.
— Automotive Mfg (Japan)Frequently Asked Questions
1. Is the PC breaker suitable for roughing?
No, the PC (Positive Finishing) breaker is designed specifically for light finishing. For roughing, we recommend the MT or RT geometries.
2. How does TT9215 perform in wet machining?
TT9215 is optimized for high-speed dry and wet machining. In continuous steel turning, the CVD coating provides exceptional protection against thermal shock.
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.