Korloy SNMG190616-HS PC9030 Heavy-Duty Stainless Steel Turning Insert (10pcs)
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The Original Korloy SNMG190616-HS PC9030 is a heavy-duty Double-Sided Square Turning Insert engineered for extreme stability in Stainless Steel (M-Group) and Heat-Resistant Alloys. With a massive 1.6mm Corner Radius, this insert is built to withstand high cutting forces and provide exceptional edge security during heavy metal removal. The -HS (High-Sharpness) geometry on this large-scale insert ensures that even during deep cuts, the cutting resistance remains low, protecting your machine's spindle and your workpiece finish.
Maximum Edge Security: The 1.6mm radius is the professional's choice for heavy-duty roughing. It offers superior heat dissipation and shock resistance compared to smaller radii, making it ideal for large-scale industrial components where tool failure is not an option.
Technical Specifications:
| Brand | Korloy (100% Genuine) |
| ISO Code | SNMG190616-HS |
| Corner Radius | 1.6 mm (Extreme Durability) |
| Insert Size | 1906 (19mm Edge Length) |
| Grade | PC9030 (PVD Specialist for Stainless) |
Core Performance Benefits:
- Robust 1.6mm Radius: Distributes cutting forces over a larger area, significantly extending tool life in abrasive stainless materials.
- Aggressive Chip Control: The HS geometry is specifically tuned for large inserts to break tough, stringy chips into manageable sizes.
- Chemical Inertness: The PC9030 PVD coating prevents "smearing" and built-up edge, critical for maintaining dimensional accuracy on large shafts.
- Heavy-Duty Economy: 8 usable cutting edges on a heavy-weight substrate provide the lowest cost-per-gram of metal removed.
Recommended Cutting Parameters (Heavy Duty):
| Material | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| 304 / 316 Stainless | 70 - 140 m/min | 0.30 - 0.65 mm/rev | 2.0 - 7.5 mm |
| Duplex Stainless | 40 - 80 m/min | 0.25 - 0.55 mm/rev | 1.5 - 6.0 mm |
| High-Temp Alloys | 20 - 45 m/min | 0.20 - 0.45 mm/rev | 1.0 - 5.0 mm |
Compatible Heavy-Duty Tool Holders:
Requires large-scale 19mm IC negative holders:
- Heavy External Turning: MSSNR 3232P19 / 4040R19
Machinist Tip: The 1.6mm Radius Advantage
Optimizing SNMG190616-HS for big jobs:
Radius vs. Heat. A 1.6mm radius is significantly better at pulling heat away from the cutting edge than a 1.2mm or 0.8mm tip. This is vital when machining large stainless forgings where the cut can last for over an hour.
Don't be shy with the feed. To avoid work hardening in stainless steel, you must maintain a healthy feed rate. With the 1.6mm radius, you can push the feed to 0.50mm/rev and still achieve a respectable surface finish.
Pro Advice: Ensure your coolant volume is high. For heavy roughing with SNMG190616-HS, the amount of chips generated is massive—keep them moving to prevent re-cutting and edge damage.
Packaging: 10 pieces per box.
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