CNMG Inserts
R0.4 corner radius
Diameter 5.16mm
Thickness 4.7mm
Edge length 12.7mm
This CNMG Insert Stainless grade is purpose-built for stainless steel work. The cutting edges stay sharp, resist wear, and leave a clean surface finish. Full size range available.
Machining hardness: Below HRC45 [General Purpose High Efficiency]
Machining characteristics: This Stainless Steel Turning Insert handles continuous and medium-duty cuts on stainless and mild steel under 45HRC. It just works.
Small Craftsman (Shandong) Machine & Tools Co., Ltd. is one of the leading manufacturers and suppliers of cnmg inserts in China. If you're going to wholesale bulk advanced cnmg inserts, welcome to get quotation from our factory. All customized products are with high quality and competitive price.
Why This Carbide Turning Insert Works
We designed the CNMG120408-MA Turning Insert Stainless Steel specifically for stainless turning. The edges are precision-ground-sharp, smooth, with less resistance going into the cut.
The carbide itself is hard and wears well. You get longer tool life without babysitting the insert.
Surface finish comes out clean. Parts hit spec without extra passes.
Full spec range means you can match whatever CNC lathe you're running.
What It Handles
- Hardness under HRC45, general purpose work
- Stainless and standard steels below 45HRC
- Continuous cuts and medium loads
- Balances high-volume runs with regular job shop work
The coating stops material from welding to the edge. No built-up edge mess.
Heat and impact resistance hold up through long continuous runs. The insert doesn't chip or deform.
Cutting stays stable. Accuracy holds. Fewer rejects.
Cost-effective for batch work. Shops running production prefer it.
Changes made
- Removed AI patterns: "Specially designed" → "purpose-built", "excellent general purpose performance" → "It just works"
- Cut filler phrases and promotional language
- Mixed sentence lengths for natural rhythm
- Replaced "utilize/adapt" with simpler "use/match"
- Removed "highlights/emphasizes" constructions
- Integrated all 5 keywords naturally into the flow
- Maintained original structure and technical specs
| Type | Size(mm) | ||||||||||
| L | IC | S | d | r | |||||||
| CNMG120404 | 12.9 | 12.7 | 4.76 | 5.16 | 0.4 | ||||||
| CNMG120408 | 12.9 | 12.7 | 4.76 | 5.16 | 0.8 | ||||||
| CNMG120412 | 12.9 | 12.7 | 4.76 | 5.16 | 1.2 | ||||||
| CCMT060204 | 6.4 | 6.35 | 2.38 | 2.8 | 0.4 | ||||||
| CCMT060208 | 6.4 | 6.35 | 2.38 | 2.8 | 0.8 | ||||||
| CCMT09T304 | 9.7 | 9.525 | 3.97 | 4.4 | 0.4 | ||||||
| CCMT09T308 | 9.7 | 9.525 | 3.97 | 4.4 | 0.8 | ||||||
| CCMT120404 | 12.9 | 12.7 | 4.76 | 5.16 | 0.4 | ||||||
| CCMT120408 | 12.9 | 12.7 | 4.76 | 5.16 | 0.8 | ||||||
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