Kyocera GDM3020N-030PH PR1225 Grooving Insert | 3mm Width(10PCS)
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GDM3020N-030PH PR1225
Kyocera Precision Tools | High-Performance Grooving & Parting
The Kyocera GDM3020N-030PH PR1225 is a specialized indexable grooving insert engineered for high-precision parting, grooving, and traverse turning. Utilizing the advanced MEGACOAT PR1225 PVD grade, this insert provides a superior balance of toughness and wear resistance. Featuring the PH chipbreaker, it is designed to manage high-feed rates while ensuring excellent chip evacuation in stainless steel machining and carbon alloy steels.
Model Specification Decoded
Insert Series
3.0mm Width
20mm Length
Neutral Angle
0.3mm Radius
Chipbreaker
MEGACOAT
Technical Dimensions
| Cutting Width ($W$) | 3.0 mm (0.118") |
|---|---|
| Corner Radius ($R$) | 0.3 mm (0.012") |
| Insert Style | Double-Ended (Neutral) |
| ANSI Designation | GDM 3020N-030PH PR1225 |
PR1225 MEGACOAT Grade
The PR1225 grade is Kyocera’s flagship PVD coating for grooving. It combines a high-toughness carbide substrate with a MEGACOAT layer that resists heat and oxidation. This makes it the primary choice for precision machining in stainless steel, providing stable performance even during interrupted cuts or low-speed operations on CNC lathes.
PH Chipbreaker Geometry
The PH Chipbreaker (Power Heavy) is optimized for medium-to-heavy grooving and parting. It features a reinforced cutting edge to prevent chipping under high cutting resistance. It excels in chip control during deep radial grooving, ensuring chips are curled tightly and ejected without damaging the workpiece surface finish.
Recommended Cutting Parameters
Optimized for GDM Series (Grooving)
| Workpiece Material | Cutting Speed ($v_c$) | Feed Rate ($f$) |
|---|---|---|
| Stainless Steel (SUS304) | 50 - 120 m/min | 0.05 - 0.15 mm/rev |
| Alloy Steel (SCM440) | 80 - 150 m/min | 0.08 - 0.18 mm/rev |
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.