Korloy DNMG150608-HS PC9030 Thick Stainless Steel Semi-Finishing Insert (10pcs)
Price shown is a starting point. Contact us for a precise quote based on your requirements.
The Original Korloy DNMG150608-HS PC9030 (ANSI Standard: DNMG 442) represents the pinnacle of stability and chip control for stainless steel turning. This heavy-duty 55° diamond insert features a 6.35mm thick substrate, providing the mass and rigidity necessary to suppress vibration in long-reach or large-diameter applications. The HS (High-Sharpness) chipbreaker is specifically engineered to solve the problem of "stringy" chips in stainless steel, forcing them to curl and break even at light to medium depths of cut.
The Stability Standard: The DNMG 442 size is the industrial choice for CNC shops that cannot afford tool deflection. Combined with the R0.8 nose radius, this insert offers incredible edge security for semi-finishing passes while delivering a high-quality surface finish without the risk of chip nesting.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DNMG150608-HS |
| ANSI Code | DNMG 442 |
| Grade | PC9030 (Premium PVD for Stainless) |
| Nose Radius | 0.8 mm (Balanced Strength & Finish) |
Core Performance Benefits:
- Advanced HS Chipbreaker: Features a sharper rake angle that reduces cutting resistance and ensures chips are snapped even at finishing depths.
- Industrial Thickness (6.35mm): Significantly more rigid than standard 1504 inserts, making it the best choice for heavy-duty lathes and boring bars.
- Nano-Structured PVD Coating: PC9030 is designed to resist built-up edge (BUE) and thermal cracking, common when machining 304 and 316 stainless.
- Versatile Application: Excels in Austenitic, Martensitic, and Duplex stainless steels as well as HRSA materials.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless (304 / 316L) | 100 - 180 m/min | 0.10 - 0.28 mm/rev | 0.5 - 2.5 mm |
| High-Hardness Stainless | 80 - 140 m/min | 0.12 - 0.25 mm/rev | 0.5 - 2.0 mm |
| Heat-Resistant Alloys | 30 - 60 m/min | 0.08 - 0.20 mm/rev | 0.4 - 1.5 mm |
Compatible Tool Holders:
Requires tool holders with 1506 (6.35mm thickness) pocket seating:
- External Turning: DDJNR/L 2525M15 / 3232P15 / 4040R15
- Internal Boring Bars: S32T-DDUNR15 / S40U-DDUNR15 / S50V-DDUNR15
The "Thick" Logic: 150608-HS vs. 150608-HM
Both are thick, but the chipbreaker defines the finish:
Best for Precision Chip Control. Use this if you are getting long, wire-like chips that scratch your stainless part. It is sharper and breaks chips more aggressively.
Best for Edge Endurance. HM is slightly more robust. If your chips are already breaking well and you want the absolute longest tool life in rougher cuts, HM is the standard choice.
Machinist's Insight: For "Lights-Out" CNC manufacturing of stainless steel, the HS chipbreaker is your best insurance policy against unexpected chip tangles and machine downtime.
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.