Tungaloy CCMT060208-PSS AH725 Turning Insert
PVD Coated Toughness | Precision Stainless Steel Specialist | 0.8mm Edge Strength
How does AH725 handle sticky materials like 304 and 316 stainless?
The Tungaloy CCMT060208-PSS AH725 is a high-toughness PVD coated carbide turning insert engineered for reliability in challenging materials. The AH725 grade utilizes an advanced AlTiN coating that creates a thermal barrier and provides exceptional resistance to built-up edge (BUE) and notch wear. This indexable turning tool is equipped with the PSS-style chipbreaker, a geometry specifically refined for fine finishing and small depths of cut. With its robust 0.8mm corner radius, it offers significantly more edge stability and tool life than 0.4mm versions, making it ideal for CNC machining of stainless steels, heat-resistant alloys, and carbon steels. Made in Japan, this insert is the professional choice for precision machining where surface quality and operational security are critical.
Decoding the CCMT060208-PSS Technical Nomenclature
C
80° Rhombic
C
7° Clearance
M
M Tolerance
T
Hole Type
06
6.4mm Edge
02
2.38mm Thick
08
0.8mm Radius
PSS
Fine Finish
Technical Specs: Metric vs. Imperial Equivalence
| Technical Feature |
Metric (Standard) |
Imperial Equiv. |
| ISO / ANSI Model |
CCMT060208-PSS |
CCMT21.52-PSS |
| Inscribed Circle (IC) |
6.35 mm |
1/4 inch |
| Corner Radius (RE) |
0.8 mm |
1/32 inch |
What are the benefits of the PSS chipbreaker in precision machining?
The PSS Chipbreaker is a specialized "Super Finishing" geometry that excels at very light depths of cut. By utilizing a sharp rake angle and a localized protrusion, it effectively manages chips that would otherwise string or wrap around the tool. This long-tail keywords industry favorite is particularly valuable for CNC machining small components where vibration must be minimized. Paired with the AH725 PVD grade, the 0.8mm radius allows for higher feed rates while maintaining a high-quality surface, significantly improving tool life compared to standard uncoated tools.
Recommended Cutting Parameters for AH725
High performance for M (Stainless), P (Steel), and S (Superalloys):
-
Cutting Speed (Vc): 60 - 220 m/min (Material dependent)
-
Feed Rate (f): 0.05 - 0.15 mm/rev
-
Depth of Cut (ap): 0.2 - 1.5 mm
*Tip: Ensure consistent coolant flow to prevent work-hardening when machining austenitic stainless steel.*
Feedback from Global Machining Experts
⭐⭐⭐⭐⭐ "Tough edge for stainless steel" - Markus H., Germany
"The 0.8mm radius on this CCMT060208 is perfect. It’s tough enough to handle slightly heavier passes on 316 stainless without chipping. AH725 is my go-to grade."
⭐⭐⭐⭐⭐ "Great chip control" - Jason W., USA
"Was having issues with chips wrapping around the bar on light cuts. The PSS geometry fixed it instantly. High quality Japan tooling."
⭐⭐⭐⭐ "Stable internal boring" - Akira S., Japan
"Used these in our SCLCR boring bars. Very low vibration and the tool life is predictable for our automated CNC shifts."
⭐⭐⭐⭐⭐ "Versatile and Durable" - Paolo M., Italy
"Excellent AlTiN coating. Handles the heat well. We use it for both carbon steel finishing and stainless. Very reliable product."
⭐⭐⭐⭐⭐ "Original Quality" - Liam G., Australia
"Authentic Tungaloy. Arrived quickly and performs just like the technical catalog says. Highly recommended for CNC shops."
Technical Q&A
Q: Why choose the 0.8mm radius (08) over the 0.4mm (04)?
A: The 0.8mm radius offers a stronger cutting edge and can handle higher feed rates. It’s the better choice for stable setups or when you need a slightly tougher insert for semi-finishing.
Q: Is AH725 suitable for interrupted cuts?
A: Yes, AH725 is a PVD carbide grade known for its toughness. It handles light to medium interrupted cuts much better than more brittle cermet grades.
Q: What tool holders work with CCMT0602?
A: It fits any standard **SCLCR06** or **SCLCR1/4** internal boring bar or external turning holder.
Expert Tip: PVD Carbide vs. Cermet
While cermet offers mirror finishes on steel, PVD Carbide (AH725) is the superior choice for stainless steel and unstable conditions. It provides the toughness required to resist chipping while the AlTiN coating ensures a long tool life in high-temperature cutting zones.
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