Korloy SP300 PC9030 3mm Single-Ended Parting Insert for Stainless Steel (10pcs)
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The Original Korloy SP300 PC9030 is a specialized 3.0mm Single-Ended Parting and Grooving Insert engineered for Stainless Steel (M-Group) and Heat-Resistant Super Alloys (S-Group). By combining an ultra-fine carbide substrate with a high-aluminum PVD coating, the PC9030 Grade offers exceptional edge sharpness and thermal stability. This 3.0mm insert is the industry standard for parting off stainless steel pipes, bars, and complex components where surface finish and dimensional accuracy are critical.
The High-Performance Choice: Unlike standard CVD coatings, the PC9030 PVD coating is thinner and smoother, which prevents gummy stainless steel chips from welding to the cutting edge. This results in longer tool life and significantly better end-face quality on your workpieces.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| Cutting Width (W) | 3.0 mm (+/- 0.05mm) |
| Grade | PC9030 (Premium PVD for Stainless) |
| Design | Single-Ended (Maximum Rigidity) |
| Applications | Parting-off, Deep Grooving, Slotted Components |
Core Performance Benefits:
- Excellent Wear Resistance: The nano-structured PVD coating protects the carbide core from chemical wear during high-temperature stainless cutting.
- Reduced Cutting Force: Optimized rake angles allow the insert to slice through "tough" materials rather than pushing them, reducing machine load.
- Enhanced Surface Finish: The sharp edge and smooth coating combine to eliminate burrs and minimize the "pip" at the center of the part.
- Chip Management: The SP-chipbreaker excels at narrowing the 3mm chip, preventing it from damaging the sidewalls of deep radial slots.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Stainless Steel (304/316) | 90 - 160 m/min | 0.05 - 0.15 mm/rev |
| Duplex / Martensitic | 70 - 120 m/min | 0.04 - 0.12 mm/rev |
| Nickel / Titanium Alloys | 30 - 80 m/min | 0.03 - 0.08 mm/rev |
Compatible Tool Holders:
For best results in high-temperature alloys, use with high-rigidity holders:
- Standard Parting Blades: SPB 26-3 / SPB 32-3
- Integral Tool Holders: NCIH 20-3 / NCIH 25-3
- Blade Blocks: SMBB 2026 / 2532
Machinist Tip: PC9030 vs. The Rest
Why the SP300 PC9030 is essential for your workshop:
Sharp & Cool. PVD technology allows for a sharper edge compared to CVD steel grades. This is vital for materials that tend to "smear" or work-harden under pressure.
The Steel Heavyweights. These are great for carbon steel, but will often cause "built-up edge" if used on 316 stainless, leading to poor finish and insert breakage.
Pro Advice: When machining 300-series stainless, never stop the feed while the tool is in contact with the material—this will cause instant work-hardening. Keep the feed constant for the best tool life.
Packaging: 10 pieces per box.
Korloy SP300 PC9030 original inserts, 3mm parting insert for 316 stainless steel, best PVD grade for Inconel parting, SP300 PC9030 cutting speed and feed, 3.0mm single ended insert for stainless grooving