Korloy SPMT060205-PD PC5300 Universal PVD Indexable Insert for Stainless (10pcs)
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The Original Korloy SPMT060205-PD PC5300 is a high-performance Universal Square Indexable Insert, precision-engineered for Indexable U-Drills and heavy-duty milling applications. Utilizing Korloy's advanced PC5300 PVD Grade, this insert features a fine-grained substrate and a heat-resistant TiAlN-based coating. It is the definitive choice for machining Stainless Steel (M-Group) and provides unmatched reliability in the inner pocket of drills where impact resistance is crucial.
Maximum Versatility: PC5300 is designed to handle interrupted cuts and unstable machining conditions. Its superior coating adhesion prevents edge chipping, making it the most reliable grade for mixed-production workshops.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Designation | SPMT060205-PD |
| Corner Radius (r) | 0.5 mm |
| Grade | PC5300 (Premium Universal PVD) |
| Target Materials | Stainless Steel, Alloy Steel, Cast Iron, Exotic Alloys |
Core Performance Benefits:
- Universal Grade: One insert for multiple materials (P, M, K, S), drastically reducing tool inventory costs.
- Impact Resistance: The PVD coating maintains a sharper edge and higher toughness than CVD, essential for the center of U-drills.
- Reduced Friction: Specialized PD chipbreaker reduces cutting heat and prevents material buildup (BUE) on the edge.
- Predictable Tool Life: Consistent performance even in difficult-to-machine materials like Duplex or 300-series stainless steel.
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn/fz) |
|---|---|---|
| Stainless Steel (304/316) | 70 - 140 m/min | 0.06 - 0.14 mm/rev |
| Alloy Steel (HB180-280) | 100 - 180 m/min | 0.07 - 0.16 mm/rev |
| Cast Iron (Grey/Ductile) | 80 - 160 m/min | 0.08 - 0.18 mm/rev |
Compatible Tooling Systems:
Ensure maximum performance by pairing with these high-stability holders:
- Indexable U-Drills: King Drill (21.5mm - 27mm Diameter)
- Indexable Milling Cutters: SPMT 06-pocket End Mills & Face Mills
Machinist Tip: The "Inner Edge" Secret
Why PC5300 is the most important insert in your U-Drill setup:
For Stainless & Inner Pockets. Use this as your inner insert for all materials. Because center speeds are low, the material "tears" rather than cuts. PC5300's high toughness prevents this impact from shattering the insert.
For High-Speed Steel. Use this for the outer pocket when machining carbon steel. It handles the high peripheral speeds (Vc) better than PVD but is too brittle for the inner pocket.
Pro Advice: If you are experiencing vibration during entry into the workpiece, reduce the feed rate by 50% for the first 2-3mm, then increase to the recommended parameters. This protects the PC5300 inner insert.
Packaging: 10 pieces per box.
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