Korloy DNMG150604-HS PC9030 Thick Stainless Steel Super-Finishing Insert (10pcs)
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The Original Korloy DNMG150604-HS PC9030 (ANSI Standard: DNMG 441) is a specialized 55° diamond insert designed for ultra-stable finishing of Stainless Steel (M) and Exotic Alloys (S). Featuring an industrial-strength 6.35mm thickness, this insert provides the rigidness needed to eliminate chatter on large-scale workpieces. The HS (High-Sharpness) chipbreaker is the industry's answer to "bird-nesting" – it forces chip breakage even at extremely light depths and low feed rates, ensuring your finished surface remains flawless.
Heavy-Duty Precision: When precision finishing large stainless steel shafts or valves, heat and vibration are your enemies. The DNMG 441's thick body acts as a heat sink, while the HS geometry ensures chips are snapped and cleared instantly, preventing catastrophic chip tangling.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG150604-HS |
| ANSI Code | DNMG 441 |
| Grade | PC9030 (Premium PVD for Stainless) |
| Thickness | 6.35 mm (Maximum Rigidity) |
Core Performance Benefits:
- Superior Chip Breaking: The HS geometry is specifically tuned for finishing passes where depth of cut is minimal, preventing long, stringy chips.
- Vibration Dampening: The 1506 (6.35mm) thickness provides significantly more mass than standard 1504 inserts, absorbing harmonics for a smoother finish.
- PVD Nanostructured Coating: PC9030 offers an ultra-smooth surface that resists chemical adhesion (sticking) from 304/316 stainless steel.
- High Dimensional Accuracy: Sharp cutting action reduces tool pressure, preventing the "pushing" of the workpiece and ensuring tight tolerances.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| 300-Series Stainless | 110 - 200 m/min | 0.05 - 0.15 mm/rev | 0.15 - 1.2 mm |
| Duplex Stainless | 60 - 110 m/min | 0.04 - 0.12 mm/rev | 0.15 - 1.0 mm |
| Titanium Alloys | 35 - 75 m/min | 0.05 - 0.10 mm/rev | 0.10 - 0.8 mm |
Compatible Tool Holders:
Must be used with holders designed for the 1506 (6.35mm thickness) pocket:
- External Precision Turning: DDJNR/L 2525M15 / 3232P15
- Heavy Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15
Thickness Advantage: DNMG 1506 vs. 1504
Why choose the "Thick" 150604-HS for precision finishing?
The 6.35mm thickness provides Ultra-High Thermal Capacity. On long finishing cuts in 316 stainless, this insert stays stable and cool, ensuring the nose radius doesn't degrade prematurely.
The standard 4.76mm thickness. Excellent for small components, but prone to micro-vibrations when used on heavy-duty lathes or during deep internal finishing.
Machinist's Insight: For automated CNC environments, HS + 1506 Thickness is the ultimate insurance policy. It stops bird-nesting and resists chatter, allowing for higher confidence in lights-out manufacturing.
Packaging: 10 pieces per box.
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.