Tungaloy CCMT060204-PSS AH725 Turning Insert
PVD Coated Versatility | Stainless & Steel Specialist | Advanced PSS Geometry
Why is AH725 the go-to grade for difficult-to-cut materials?
The Tungaloy CCMT060204-PSS AH725 is a high-performance PVD coated carbide turning insert designed for maximum versatility across a wide range of materials, especially stainless steel and heat-resistant alloys. The AH725 grade features a specialized AlTiN coating that provides exceptional wear resistance and adhesion resistance, making it ideal for preventing notch wear on the cutting edge. This indexable turning tool is equipped with the PSS-style chipbreaker, which is specifically optimized for small depths of cut and lower feed rates. Its 0.4mm corner radius provides the perfect balance between edge sharpness and structural integrity for precision CNC machining. Made in Japan, this insert is a cornerstone of precision machining where reliability and predictable tool life are non-negotiable.
Understanding the CCMT060204-PSS Technical Designation
C
80° Rhombic
C
7° Clearance
M
M Tolerance
T
Hole Type
06
6.4mm Edge
02
2.38mm Thick
04
0.4mm Radius
PSS
Fine Finishing
Technical Specs: Metric vs. Imperial Equivalence
| Specifications |
Metric (Standard) |
Imperial Equiv. |
| Product Model |
CCMT060204-PSS |
CCMT21.51-PSS |
| Inscribed Circle (IC) |
6.35 mm |
1/4 inch |
| Corner Radius (RE) |
0.4 mm |
1/64 inch |
How does the PSS chipbreaker help with stainless steel chips?
The PSS Chipbreaker is a specialized geometry designed to handle the high ductility and heat-generating properties of stainless steel. By utilizing a sharp cutting edge and a specific protrusion on the rake face, it ensures excellent chip breaking even at very low feed rates. This long-tail keywords solution for CNC operators prevents the dreaded "bird nesting" of chips. When combined with the AH725 PVD grade, the indexable turning tool remains stable during intermittent cuts or varying depths of cut, making it the top choice for precision machining of complex 304 or 316 stainless components in CNC machining centers.
Recommended Cutting Parameters for AH725
High performance for M (Stainless), P (Steel), and S (Superalloys):
-
Cutting Speed (Vc): 60 - 200 m/min (depending on material hardness)
-
Feed Rate (f): 0.04 - 0.12 mm/rev
-
Depth of Cut (ap): 0.2 - 1.2 mm
*Note: Use plenty of high-pressure coolant when machining stainless steel to extend coating life.*
Global Verified Customer Reviews
⭐⭐⭐⭐⭐ "Solved my 304 SS chip issues" - James D., USA
"The PSS breaker is the real deal. I was getting long strings on my Swiss lathe with 304 stainless, but these broke the chips perfectly."
⭐⭐⭐⭐⭐ "Reliable Tool Life" - Müller G., Germany
"AH725 is a very stable grade. We use it for small stainless pins and the dimensions stay consistent for hundreds of parts."
⭐⭐⭐⭐ "Great for internal boring" - Sato T., Japan
"Using these in an 8mm boring bar. The low cutting pressure from the PSS geometry prevents chatter in deep holes. Very good quality."
⭐⭐⭐⭐⭐ "Versatile Tooling" - Luca R., Italy
"I keep these in my machine for both steel and stainless work. Saves time on tool changes and the PVD coating holds up great."
⭐⭐⭐⭐⭐ "Fast Shipping, Authentic" - Tan W., Singapore
"Genuine Tungaloy inserts. Arrived quickly and the performance matches the Tungaloy catalog exactly. Will buy again."
Technical Q&A
Q: What is the difference between PSS and PS chipbreakers?
A: PSS is more focused on "Super Finishing" and very light feed rates, providing even sharper cutting action than the standard PS geometry.
Q: Can I use AH725 for aluminum?
A: AH725 is a coated grade. For aluminum, an uncoated, polished insert like the KS05F grade is generally preferred to prevent chip welding.
Q: Which tool holder do I need?
A: This insert fits all standard **SCLCR06** or **SCLCR1/4** turning holders and boring bars.
Expert Tip: PVD Carbide vs. Cermet
While cermet offers better surface finish in high-speed steel turning, PVD Coated Carbide (AH725) provides the toughness and chemical resistance needed for stainless steel and interrupted cuts. It is the safer, more versatile choice for multi-material workshops.
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