Tungaloy CCMT060202-PS AH725 Turning Insert
Precision PVD Coating | Versatile AH725 Grade | 0.2mm Radius for Fine Finishing
What makes CCMT060202-PS AH725 ideal for precision CNC turning?
The Tungaloy CCMT060202-PS AH725 is a high-performance PVD coated carbide turning insert engineered for exceptional versatility across multiple materials, especially stainless steel and heat-resistant alloys. Featuring the legendary AH725 grade, this insert combines a tough carbide substrate with a specialized PVD coating to resist built-up edges and oxidation. The PS-style chipbreaker is precision-ground for light finishing, ensuring excellent chip control even at minimal depths of cut. With its sharp 0.2mm corner radius, it is the ultimate indexable turning tool for precision machining where tight tolerances and a mirror-like surface finish are mandatory. Made in Japan, it provides a reliable and long tool life for high-end manufacturing.
How do I decode the CCMT060202-PS technical specification?
C
80° Rhombic
C
7° Clearance
M
M Tolerance
T
Hole Type
06
6.4mm Edge
02
2.38mm Thick
02
0.2mm Radius
PS
Chipbreaker
Size Comparison: Metric vs. Imperial Systems
| Measurement |
Metric (Standard) |
Imperial Equiv. |
| ISO / ANSI Code |
CCMT060202-PS |
CCMT21.50.5-PS |
| Inscribed Circle |
6.35 mm |
1/4 inch |
| Corner Radius |
0.2 mm |
0.008 inch |
Why is the AH725 grade so effective for sticky materials?
The AH725 grade is a specialized PVD coated grade featuring a high-density, multi-layered AlTiN coating. Unlike CVD grades, PVD is thinner and allows for a much sharper cutting edge. This long-tail keywords industry standard is specifically designed to combat "built-up edge" (BUE) which is common when machining stainless steel and titanium. For precision machining of small components, AH725 provides the sharpness and heat resistance needed to maintain dimensional accuracy throughout the CNC machining process.
The PS Chipbreaker: Ground for Ultra-Fine Finishing
The PS Chipbreaker is a ground geometry that facilitates smooth chip evacuation even at low feed rates. When paired with the 0.2mm radius, this indexable turning tool creates very low cutting resistance. This is critical when working with small diameters or thin workpieces where tool pressure could cause deflection or vibration.
What are the recommended feeds and speeds for AH725?
Optimized for P (Steel) and M (Stainless Steel):
-
Cutting Speed (Vc): 50 - 150 m/min (Stainless) | 70 - 200 m/min (Steel)
-
Feed Rate (f): 0.03 - 0.12 mm/rev
-
Depth of Cut (ap): 0.1 - 1.0 mm
*Pro Tip: Use high-pressure coolant to maximize tool life when machining stainless steel alloys.*
Reviews from the Professional Machining Community
⭐⭐⭐⭐⭐ "Killer on 304 Stainless" - Erik V., Sweden
"I was struggling with chip wrapping on 304 stainless until I tried the PS breaker. The AH725 grade holds an edge way longer than my previous PVD inserts."
⭐⭐⭐⭐⭐ "Best for small parts" - Yuki M., Japan
"The 0.2mm radius is perfect for fine details. Tungaloy Japan quality is unbeatable for precision lathe work."
⭐⭐⭐⭐ "Very Sharp and Stable" - Tom H., USA
"I use these for finishing passes on alloy steel. The surface finish is mirror-like. Consistently good tool life."
⭐⭐⭐⭐⭐ "Perfect for boring bars" - Alessio D., Italy
"We use these in our small SCLCR boring bars. The low cutting force of the PS geometry prevents chatter perfectly."
⭐⭐⭐⭐⭐ "Authentic product" - Liam F., Australia
"Original Tungaloy boxes, fast shipping. Performs exactly as the technical sheet promised for my stainless project."
Technical Q&A
Q: Can I use AH725 for dry machining?
A: While the PVD coating is heat-resistant, coolant is highly recommended for stainless steel to prevent thermal cracking and built-up edge.
Q: What tool holder fits this insert?
A: This insert fits any **SCLCR06** or **SCLCL1/4** holder or boring bar designed for 80-degree rhombic inserts of size 0602.
Q: Why choose the 0.2mm radius over 0.4mm?
A: Use the 0.2mm radius (02) for ultra-fine finishing, sharp corners, and to minimize vibration on thin-walled parts.
Expert Machining Tip: PVD vs. CVD
For stainless steel and precision finishing, PVD Coated Carbide like AH725 is superior to CVD because it allows for a sharper edge. This sharpness reduces the "rubbing" effect, which helps prevent work-hardening of the material and ensures a superior tool life in precision machining.
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