Original Sumitomo CNMG331EFB AC6040M Carbide Turning Insert – Diamond 80° | Steel, Hardened Steel CNMG090404
Brand: Sumitomo
$13.28
The Sumitomo CNMG331EFB AC6040M is a professional-grade carbide insert designed for hardened steel machining above HRC 45. Sumitomo AC6040M for milling steel. Suitable for CNC lathes with appropriate tool holders. Recommended Vc 80-200 m/min for hard turning. Use through-coolant or high-pressure coolant for optimal results. Available from Hooguu.com with worldwide shipping and competitive pricing. SKU: CNMG331EFB AC6040M.
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.
ⓘ
Prices move with raw-material (tungsten / steel) market rates. Please confirm the current price with us before placing your order — thank you.
- 🚚Free worldwide shipping on all orders
- ⏱️Delivery in 15–30 days · express (DHL/FedEx) on request
- 🛃Free customs clearance handling & correct HS/NCM documents
- 💬Customer service replies within 24 hours, 7 days a week
- ✅100% genuine OEM — certificates available on request
- 🔒Guaranteed safe & secure checkout · 30-day money-back guarantee
- 📷Need test samples or real photos of this exact item? Just ask our team.
We accept
| Brand | Sumitomo |
|---|---|
| Part No. (MPN) | CNMG331EFB |
| Grade | AC6040M |
| Type | Turning Insert |
| Shape | Diamond 80° |
| Suitable Material | Steel |
| Category | Diamond 80° (CNMG) |
What Buyers Say
★★★★★
100% recomendados los insertos, y el paquete está llegando muy rapido
★★★★★
Товар доставлен, оригинальный, упаковка отличная! Всё полностью соответствует описанию.
★★★★★
По сырой стали пойдёт. Большой радиус при вершине, больше нагрузка.
★★★★★
A good product and the seller offered a nice discount
★★★★★
the product is like show in the picture
★★★★★
дошло быстрее чем заявлено. все супер
