Original Sumitomo CNMG866EEM AC6040M Carbide Turning Insert – Diamond 80° | Steel, Stainless Steel CNMG250924
Brand: Sumitomo
$80.21
The Sumitomo CNMG866EEM AC6040M is a professional-grade carbide tool designed for stainless steel turning and milling operations. Suitable for use on CNC lathes and machining centers with appropriate tool holders. Recommended for production environments where consistent surface finish and dimensional accuracy are critical. For optimal results, use with through-coolant or high-pressure coolant delivery. Reduce cutting speed by 20-30% compared to carbon steel. Use positive-rake geometry to mini…
Machining Application AC6040M
M Stainless steel
Sumitomo grade — recommended for stainless steel (M).
Recommended cutting data
Group M — Stainless steel
- Ferritic / martensitic (HB ≤ 220)
Vc: 120–200 m/min; f: 0.08–0.30 mm/rev; ap ≤ 3.0 mm - Austenitic 304 / 316 (work-hardening)
Vc: 90–160 m/min; f: 0.08–0.25 mm/rev; ap ≤ 2.5 mm
Flood coolant; avoid too low a feed to prevent work hardening.
Figures are general reference ranges by ISO material group — adjust for tool geometry, machine rigidity and cooling. For exact recommendations refer to the manufacturer's data or contact us for a quote.
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Prices move with raw-material (tungsten / steel) market rates. Please confirm the current price with us before placing your order — thank you.
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We accept
| Brand | Sumitomo |
|---|---|
| Part No. (MPN) | CNMG866EEM |
| Grade | AC6040M |
| Type | Turning Insert |
| Shape | Diamond 80° |
| Suitable Material | Steel |
| Category | Diamond 80° (CNMG) |
What Buyers Say
★★★★★
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★★★★★
the product is like show in the picture
★★★★★
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