Korloy DCMT11T304-HMP PC5300 Tough Turning Insert, R0.4 (10pcs)
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The Original Korloy DCMT11T304-HMP PC5300 (ANSI Standard: DCMT 32.51) is the ultimate problem-solver for interrupted cuts and difficult machining conditions. While the HMP geometry provides precision chip control for semi-finishing, the PC5300 grade is engineered with a high-toughness substrate and a specialized PVD coating. This combination makes it exceptionally resistant to mechanical shock and thermal cracking, allowing it to excel in Stainless Steel (M), Carbon Steel (P), and Heat-Resistant Alloys (S).
Maximum Versatility & Toughness: PC5300 is Korloy’s most "universal" tough grade. If your machine setup is less than perfectly rigid, or if your workpiece has holes, keyways, or a rough scaly surface, this is the insert you need.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | DCMT11T304-HMP |
| ANSI Code | DCMT 32.51 |
| Grade | PC5300 (Universal Tough PVD) |
| Nose Radius | 0.4 mm (Balanced Finish & Strength) |
Core Performance Benefits:
- Impact Resistance: Optimized to handle heavy interruptions without edge chipping or catastrophic failure.
- HMP Chip Control: The specialized semi-finishing geometry prevents long, stringy chips even when cutting tough austenitic stainless steel.
- Wide Application Range: One insert for multiple materials—reduces inventory costs by performing well in steel, stainless, and exotic alloys.
- Fine Surface Finish: Despite its toughness, the periphery-ground edge allows for high-precision finishing passes.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Stainless (Interrupted) | 80 - 150 m/min | 0.08 - 0.22 mm/rev | 0.5 - 2.5 mm |
| Carbon Steel / Forgings | 120 - 220 m/min | 0.10 - 0.25 mm/rev | 0.5 - 3.0 mm |
| Exotic Alloys (Inconel) | 20 - 50 m/min | 0.05 - 0.15 mm/rev | 0.3 - 1.5 mm |
Compatible Tool Holders:
Standard 55-degree diamond holders for 11T3 size:
- External Turning: SDJCR/L 1616H11 / 2020K11 / 2525M11
- Internal Boring: S16Q-SDUCR11 / S20R-SDUCR11 / S25S-SDUCR11
The Toughness Guide: PC5300 vs. PC9030
Choosing the right PVD grade for your stainless steel project:
Best for Heavy Interruption and unstable machining. If your tool is breaking or chipping, switch to PC5300. It is a universal "safe" grade.
Best for Continuous Finishing. PC9030 offers higher wear resistance at speed. Use it for stable, high-volume production of clean stainless parts.
Machinist's Pro Tip: If you are unsure about the material consistency or machine stability, start with PC5300. It provides the largest "safety margin" for any workshop.
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.