Tungaloy RCMT0803MO-61 TH10 Insert
Non-Ferrous Precision | 61 Finishing Breaker | Sub-Micron TH10 Grade
Which round insert provides a mirror finish on aluminum parts?
The Tungaloy RCMT0803MO-61 TH10 is a premier uncoated carbide turning insert designed specifically for superior performance in non-ferrous materials. Utilizing the TH10 sub-micron carbide grade, it offers exceptional hardness and a razor-sharp edge that effectively prevents "built-up edge" (BUE) when machining sticky materials like aluminum or copper alloys. The 61 chipbreaker features a high positive rake angle for effortless cutting, ensuring high-speed finishing with incredible surface integrity. Made in Japan, this CNC turning insert is the professional choice for complex profiling and 3D contouring of high-value non-ferrous components.
Sub-Micron TH10 Grade
An uncoated grade with high wear resistance and toughness. Perfect for high-velocity machining of aluminum, brass, and plastics.
Mirror Surface Geometry
The polished top face reduces friction, ensuring smooth chip flow and preventing material adhesion on the cutting edge.
High-Feed Profiling
The RCMT round shape provides maximum edge strength, allowing for aggressive profiling and 3D contouring without risk of chipping.
Decoding the RCMT0803MO-61 Technical Specification
R
Round
C
7° Relief
M
Tolerance
T
Hole/Fix
08
8mm Size
03
3.18mm Thick
MO
Edge detail
61
Breaker
3. Technical Specifications: Metric vs. Imperial
| Feature |
Metric (ISO) |
Imperial (ANSI) |
| Inscribed Circle (IC) |
8.0 mm |
0.315 inch |
| Thickness (S) |
3.18 mm |
1/8 inch |
| Corner Radius (RE) |
4.0 mm (Full Round) |
0.157 inch |
| Hole Diameter (D1) |
3.4 mm |
0.134 inch |
Recommended Cutting Parameters (TH10)
-
Cutting Speed (Vc): 200 - 1000 m/min (High speed for Aluminum)
-
Feed Rate (f): 0.05 - 0.25 mm/rev (For precision finishing)
-
Depth of Cut (Ap): 0.1 - 2.0 mm (Optimized profiling range)
*Pro Tip: When machining high-silicon aluminum, ensure high coolant flow to maximize tool life with TH10 grade.*
4. Product Applications
- Aerospace aluminum alloy (6061, 7075) profiling.
- Machining of pure copper and brass precision parts.
- Automotive engine component finishing (non-ferrous).
- General turning of engineering plastics and FRP.
5. Tool Compatibility
Compatible with standard SRGCR/L or SRDCN turning tool holders for 8mm round positive inserts (ISO Size 0803). Designed for high-RPM lathe environments.
7. Why Choose CNCHome-Beyond?
Genuine Tungaloy
100% Original Japan
Non-Ferrous Expert
TH10 Grade Authority
OEM Verified
Global Brand Supplier
Global Supply
B2B Logistics Leader
Global Verified Reviews
⭐⭐⭐⭐⭐ "Perfect for 7075 Aluminum" - David K., USA
"The surface finish is unbelievable. No build-up at all. TH10 is the king of uncoated grades."
⭐⭐⭐⭐⭐ "Very Sharp Edge" - H. Nakamura, Japan
"Used for complex profiling of copper parts. Sharpest edge I've seen. Chips are managed perfectly."
⭐⭐⭐⭐ "Great for Brass" - A. Bernard, France
"Finally, an insert that doesn't work-harden the brass. The round geometry stays strong even with high feeds."
⭐⭐⭐⭐⭐ "Authentic Tungaloy Quality" - L. Rossi, Italy
"Performance is miles ahead of cheap alternatives. The round shape makes 3D contouring easy."
⭐⭐⭐⭐⭐ "B2B Reliability" - Rajiv M., Singapore
"Fast shipping from beyond. These RCMT0803 inserts are essential for our precision aluminum shop."
8. FAQ - Common Technical Questions
Q: Can I use this for Stainless Steel?
A: No. TH10 is an uncoated grade for non-ferrous metals. For Stainless Steel, please use Tungaloy AH630 or AH645 grades.
Q: What is the main advantage of the 61 chipbreaker?
A: It is designed for light-duty finishing, offering a very sharp cutting action that produces superior surface finishes on soft metals.
Q: Does it fit standard ISO holders?
A: Yes, it is a standard ISO RCMT0803 insert and fits all compatible SRDCN/SRGCR tool holders.
Expert Insight: The TH10 Non-Ferrous Advantage
In high-speed aluminum turning, heat is the enemy of the surface finish. The TH10 grade's sub-micron grain structure allows for an incredibly sharp edge that 'slices' the material rather than tearing it. This prevents the sticky aluminum from welding to the tip, ensuring that the RCMT0803 maintains its mirror-finish capability throughout the batch.
© Technical Data provided by cnchome-beyond.com - Industrial Quality Authority
