Kyocera DCGT11T304ER-U TN60 Cermet Turning Insert for Steel Finishing
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Kyocera DCGT11T304ER-U TN60 Cermet Insert
Product Overview
"Which cermet insert provides the best surface finish and wear resistance for high-speed finishing of carbon steel?"
The Kyocera DCGT11T304ER-U TN60 is a premier uncoated cermet insert engineered for high-speed finishing operations. Utilizing the TN60 grade—a classic cermet known for its exceptional thermal stability and resistance to built-up edge—this insert delivers mirror-like surface finishes on steel. The U-Chipbreaker geometry is specifically designed for light cutting depths, ensuring excellent chip evacuation and reducing cutting force during precision 55° diamond turning.
Key Features
- ✔TN60 Cermet Technology: Superior oxidation resistance compared to carbide, allowing for higher cutting speeds.
- ✔U-Chipbreaker: Optimized for finishing; provides excellent chip control at low feed rates.
- ✔Precision ER Edge: Sharp, reliable edge preparation for consistent dimensional accuracy.
- ✔Superior Surface Finish: Cermet’s low affinity for steel workpieces prevents welding and smearing.
Technical Specifications
| ISO Specification | Metric (mm) | Imperial Equivalent |
|---|---|---|
| Inscribed Circle (IC) | 9.525 mm | 3/8" |
| Thickness (S) | 3.97 mm | 0.156" |
| Corner Radius (RE) | 0.4 mm | 1/64" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 150 - 350 m/min | 0.05 - 0.15 mm/rev |
| Alloy Steel (P) | 120 - 280 m/min | 0.05 - 0.12 mm/rev |
Model Decoding: DCGT11T304ER-U
55° Rhombic
7° Clearance
Precision
Counter Sunk
Length
3.97mm Thk
0.4 Radius
Chipbreaker
Matching Toolholders
This insert fits all standard ISO toolholders designed for DCGT 11T3 / DCMT 11T3.
View SDJCR/L Toolholders →Applications & Compatibility
The DCGT11T304ER-U TN60 is engineered for high-precision finishing. It is ideal for continuous cutting where tight tolerances and superior surface finishes are required. Its 55° diamond shape allows for versatile profiling, making it suitable for automotive shafts, hydraulic components, and aerospace fittings. Compatible with machines like Citizen, Star, Tsugami, Haas, and Mazak.
Why Choose Kyocera TN60 Cermet?
Kyocera is the world leader in cermet technology. TN60 is a proven grade that offers the perfect balance of toughness and hardness for steel machining.
"Like a mirror" - Mark S. (USA)
Finished a batch of 1018 steel pins. The finish was incredible, no polishing needed.
"Top für Schlichten" - Klaus M. (Germany)
Stable dimensions and very long tool life on light cuts.
"High speed reliable" - Yuki T. (Japan)
TN60 never disappoints. Best chip control with the U-breaker.
"Great value" - Luigi R. (Italy)
Good industrial performance. Essential for our production line.
Industrial Support FAQ
A: Cermet is more brittle than carbide. While TN60 is tough, we recommend continuous finishing for best results. Use carbide for heavy interruptions.
A: No, TN60 is an uncoated cermet. Its chemical stability inherently provides excellent wear resistance without the need for a coating.
A: The U-breaker is a finishing breaker that excels at chip breaking in low depth of cut (DOC) scenarios, preventing "bird-nesting."
Grade Comparison: TN60 is general-purpose cermet. Use PV7025 if PVD coating is required for added wear resistance.
Equivalent Models: Mitsubishi NX2525, Tungaloy NS9530, Korloy CN2000.
Troubleshooting: If chipping occurs, decrease cutting speed or check for rigid workholding. If built-up edge occurs, increase cutting speed.
Workpiece Material Matrix: P (Steel) ●●● | M (Stainless) ●○○ | K (Cast Iron) ●●○ | N (Non-Ferrous) ●●○
Need Help With Kyocera Inserts?
Looking for a Kyocera 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 Kyocera 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.