Original Sumitomo CPMT21.51ESU AC820P Carbide Turning Insert – Diamond 80° | Steel, Stainless Steel CPMT060204 CPMT211
Brand: Sumitomo
$11.62
Turning Insert: CPMT21.51ESU AC820P, Carbide – AC820P, Coated Finish, Neutral, 0.2520″ Long, 0.2500″ Inscribed Circle, 0.0156″ Corner Radius, 80.00 deg C – Diamond (Rhombic) 80-Deg, Series CPMT
Machining Application AC820P
P Steel
Sumitomo grade — recommended for steel (P).
Recommended cutting data
Group P — Carbon & alloy steels
- Low-carbon / structural steel (HB ≤ 200)
Vc: 180–320 m/min; f: 0.10–0.40 mm/rev; ap ≤ 4.0 mm - Alloy / quenched-and-tempered steel (HB 200–330)
Vc: 120–240 m/min; f: 0.10–0.35 mm/rev; ap ≤ 3.0 mm
Raise Vc for continuous cuts; lower it and pick a tougher chipbreaker for interrupted cuts.
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) | CPMT21.51ESU |
| Grade | AC820P |
| Type | Turning Insert |
| Shape | Diamond 80° |
| Suitable Material | Steel |
| Category | Turning Inserts |
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
