Mitsubishi DCGT11T302R-SN VP15TF Ground Precision Turning Insert (10pcs)
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DCGT11T302R-SN VP15TF
G-Class Ground Precision | Miracle PVD Coating | SN Ultra-Low Force Geometry
Engineered for Vibration-Sensitive Machining
VP15TF Grade (The Miracle PVD Advantage): The VP15TF is a micro-grain carbide substrate paired with Mitsubishi’s proprietary Miracle (Al-Ti-N) PVD coating. Unlike CVD coatings, this PVD layer is exceptionally uniform and thin, allowing the fully ground cutting edge to maintain its razor-sharpness. It is the premier choice for stainless steels, carbon steels, and heat-resistant alloys.
SN Chipbreaker (Anti-Vibration Specialist): The SN geometry is a super-sharp, high-positive rake breaker. It is specifically designed to "slice" through material rather than "pushing" it. By drastically reducing radial cutting forces, it prevents deflection in slender workpieces and eliminates chatter in internal boring operations.
G-Class Fully Ground Precision: Every DCGT insert is periphery-ground. This ensures a sharp, burr-free edge and an indexing tolerance within ±0.025mm. This high level of repeatability means your "first part" after an insert change is as accurate as the "last part."
Metric vs. Imperial Comparison
| System | Model Designation | I.C. (Inscribed Circle) | Thickness | Radius (RE) |
|---|---|---|---|---|
| Metric | DCGT11T302R-SN | 9.525 mm | 3.97 mm | 0.20 mm |
| Imperial | DCGT32.50.5R-SN | 3/8" | 5/32" | 0.0078" |
Precision Machining Recommendations
*The SN breaker is optimized for ultra-light cuts. Ensure spindle speed (RPM) is high to maintain surface finish Ra.
| Workpiece Material | Speed (Vc) | Feed (fn) | Depth (Ap) |
|---|---|---|---|
| Mild / Carbon Steel | 120 - 250 m/min | 0.02 - 0.10 mm/r | 0.05 - 0.80 mm |
| Stainless Steel (316) | 80 - 180 m/min | 0.02 - 0.08 mm/r | 0.05 - 0.60 mm |
Compatible Tool Holders
Maximum performance when used with SDJCR or SDUCR 11-series holders:
Shop SDJCR 11 HoldersPro-Tip: Ground DCGT vs. Molded DCMT
DCGT (Ground): Best for aerospace or medical parts where tolerances are tighter than +/- 0.01mm. The ground edge significantly reduces "smearing" and work-hardening on stainless steel.
DCMT (M-Class Molded): Use for general-purpose roughing where cost-per-edge is the priority and tolerances are more relaxed.
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Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.