Korloy CNMG120404-HS PC5300 Universal Finishing Turning Insert (10pcs)
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The Original Korloy CNMG120404-HS PC5300 (ANSI Standard: CNMG 431) is the ultimate universal finishing insert designed for maximum versatility. Featuring the high-toughness PC5300 PVD coating, this insert excels across multiple material groups, including Steel (P), Stainless Steel (M), Cast Iron (K), and Exotic Alloys (S). The specialized HS chipbreaker provides a sharp cutting edge that prevents work hardening and delivers superior surface finishes even in unstable machining conditions or interrupted cuts.
Universal Performer: PC5300 is our most recommended grade for shops that machine a variety of materials and require a single, reliable insert to handle everything from alloy steel to 316 stainless.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | CNMG120404-HS |
| ANSI Code | CNMG 431 |
| Grade | PC5300 (Universal PVD Premium) |
| Chipbreaker | HS (Sharp Precision Finishing) |
Core Performance Benefits:
- Multi-Material Excellence: Reduces tool inventory by performing exceptionally well in steel, stainless steel, and cast iron.
- Extreme Toughness: Specialized PVD coating prevents micro-chipping and survives interrupted cuts where other finishing inserts fail.
- Superior Surface Control: The HS geometry is designed for light depths of cut, ensuring clean chip evacuation and a mirror-like finish.
- Low Cutting Force: Sharp edge reduces pressure on the workpiece, making it ideal for thin-walled parts or long, slender shafts.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon/Alloy Steel | 150 - 280 m/min | 0.05 - 0.20 mm/rev | 0.2 - 2.5 mm |
| Stainless Steel (304/316) | 100 - 220 m/min | 0.05 - 0.18 mm/rev | 0.2 - 2.0 mm |
| Cast Iron | 120 - 250 m/min | 0.08 - 0.25 mm/rev | 0.5 - 2.5 mm |
Compatible Tool Holders:
Ensure maximum precision for finishing operations with these rigid D-Type or M-Type holders:
- External Turning: PCLNR/L 2020K12 / PCLNR/L 2525M12
- Precision Boring Bars: S25S-PCLNR12 / S32T-PCLNR12
Pro Tip: PC5300 vs. PC9030 for Finishing
Which PVD grade should you choose for your shop?
Best for versatility. Superior toughness for interrupted cuts and mixed-material production.
Best for dedicated high-volume stainless steel. Offers maximum resistance to adhesive wear and built-up edge.
Machinist's Hint: If you are working on a job with unknown material or heavy vibration, start with PC5300—its high toughness is your safety net against sudden tool failure.
Packaging: 10 pieces per box.