Korloy TNMX160404R NC3030 (Right Hand) Tough Steel Finishing Insert for Interrupted Cuts (10pcs)
30-Day Free Returns
Free Worldwide Shipping
The Original Korloy TNMX160404R NC3030 is a specialized Right-Hand Triangular Turning Insert engineered for Demanding Steel Machining (P-Group). Featuring the high-toughness NC3030 Grade, this insert is specifically designed to handle interrupted cuts and unstable machining conditions that would cause standard grades to chip. The TNMX geometry and 0.4mm corner radius provide a sharp, clean cut, ensuring a premium surface finish even on tough, scaly, or non-homogeneous steel workpieces.
Engineered for Reliability: If you are struggling with edge chipping during interrupted cuts or when machining hexagonal bars, NC3030 is your solution. It combines a thick CVD coating with a high-strength substrate to absorb mechanical shocks while maintaining a sharp finishing edge.
Technical Specifications:
| ISO Designation | TNMX 160404R |
| Hand of Tool | Right Hand (R) |
| Inscribed Circle (IC) | 9.525 mm / (3/8") |
| Thickness (S) | 4.76 mm / (3/16") |
| Corner Radius (r) | 0.4 mm / (1/64") |
| Grade | NC3030 (Toughened Steel Specialist) |
Core Performance Benefits:
- Maximum Edge Security: Optimized for interrupted cutting where mechanical shock resistance is the priority.
- Shock-Absorbing Substrate: The NC3030 core is designed to prevent crack propagation, extending tool life in rough conditions.
- Precision TNMX Geometry: Delivers excellent chip breaking even at light depths of cut, protecting the finished surface.
- Versatile PVD/CVD Hybrid Tech: Provides a smooth surface to reduce friction and heat build-up.
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) | Depth of Cut (ap) |
|---|---|---|---|
| Low Carbon Steel (Interrupted) | 140-280 m/min | 0.08-0.22 mm/rev | 0.2-2.0 mm |
| Alloy Steel (Heavy Surface) | 120-240 m/min | 0.06-0.18 mm/rev | 0.2-1.8 mm |
Compatible Tool Holders:
Fits all standard Right-Hand (R) or Neutral (N) tool holders designed for 16-size inserts:
- External Holders: MTJNR 2020K16 / MTJNR 2525M16 (ANSI 12-4B / 16-4D)
- Internal Boring Bars: S25S-WTJNR16 / S20R-WTJNR16
Machinist Tip: NC3030 vs. NC3020
Choosing the right protection for your cutting edge:
High Toughness. Best for断续切削 (interrupted cuts), hexagonal bars, or parts with holes. It sacrifices a bit of wear resistance for maximum durability against chipping.
High Versatility. Best for continuous turning. It is harder than NC3030 and will last longer on smooth, clean workpieces, but is more likely to crack under heavy impact.
Pro Advice: If you see "micro-chipping" on your NC3020 inserts, upgrade to this NC3030 immediately. For finishing with a 0.4mm radius, keep your feed rate below 0.15mm/rev for the best surface quality.
Packaging: 10 pieces per box.
TNMX 160404R for interrupted cuts, Korloy NC3030 vs NC3020 toughness, finishing inserts for rough steel surface, right hand CNC inserts for 4340 steel, impact resistant triangular turning inserts