Sumitomo CNMG120408N-GU AC630M Carbide Turning Insert – Diamond 80°, R0.8, GU chipbreaker | Stainless Steel & Steel CNMG432
$80.40
Genuine Sumitomo Electric CNMG120408N-GU AC630M carbide turning insert with a Diamond 80° (C-type) shape, 0° clearance and with hole, double-sided chipbreaker. Grade AC630M is a CVD-coated carbide grade: general-purpose stainless steel turning, also suits light continuous cuts in 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.
- 🚚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.
| Brand | Sumitomo |
|---|---|
| Part No. (MPN) | CNMG120408N-GU |
| Grade | AC630M |
| Type | Turning Insert |
| Shape | Diamond 80° |
| Suitable Material | Stainless 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
Related products
-
Korloy CNMG120412-GS PC8110 Diamond 80° Steel CNMG433
$16.59Add to cartThe Korloy CNMG120412 is a professional-grade carbide insert designed for carbon and alloy steel turning. Korloy PC8110 CVD grade optimized for grey and ductile cast iron. Suitable for CNC lathes with appropriate tool holders. Recommended Vc 200-350 m/min roughing, 300-450 m/min finishing. Use through-coolant or high-pressure coolant for optimal results. Available from Hooguu.com with worldwide shipping and competitive pricing. SKU: CNMG120412-GS PC8110.
-
Mitsubishi CNMG430.5FH MC6135 Diamond 80° CNMG120400
$20.36Add to cartThe Mitsubishi CNMG430 is a professional-grade carbide insert designed for general CNC turning and machining operations. Suitable for CNC lathes with appropriate tool holders. Recommended Vc 200-350 m/min roughing, 300-450 m/min finishing. Use through-coolant or high-pressure coolant for optimal results. Available from Hooguu.com with worldwide shipping and competitive pricing. SKU: CNMG430.5FH MC6135.
-
Carmex Diamond 80° S27 Screw
$3.98Add to cartThe Carmex S27 Screw is a professional-grade carbide insert designed for general CNC turning and machining operations. Suitable for CNC lathes with appropriate tool holders. Recommended Vc 200-350 m/min roughing, 300-450 m/min finishing. Use through-coolant or high-pressure coolant for optimal results. Available from Hooguu.com with worldwide shipping and competitive pricing. SKU: S27 Screw.
-
Seco CNMG120408-M5 TP1500 Diamond 80° Steel CNMG432
$6.72Add to cartThe Seco CNMG120408 is a professional-grade carbide insert designed for carbon and alloy steel turning. Suitable for CNC lathes with appropriate tool holders. Recommended Vc 200-350 m/min roughing, 300-450 m/min finishing. Use through-coolant or high-pressure coolant for optimal results. Available from Hooguu.com with worldwide shipping and competitive pricing. SKU: CNMG120408-M5 TP1500.
More from Sumitomo
-
Original Sumitomo AC5025S Carbide Turning Insert – Parallelogram 85° VBGT22.001RFYS-AC5025S
$20.02Add to cartTurning Insert: VBGT22.001RFYS-AC5025S, Carbide – AC5025S, Absotech Bronze Finish, Right Hand, 0.4370″ Long, 0.2500″ Inscribed Circle, 0.0012″ Corner Radius, 35.00 deg V – Diamond (Rhombic) 35-Deg, Se
-
Sumitomo CCGT03X1003R-FYS AC1030U Carbide Turning Insert – Diamond 80°, R0.03, FYS chipbreaker | Steel & Stainless Steel
$147.60Add to cartGenuine Sumitomo Electric CCGT03X1003R-FYS AC1030U carbide turning insert with a Diamond 80° (C-type) shape, 7° clearance and countersunk hole, single-sided chipbreaker. Grade AC1030U is a PVD-coated carbide grade: first-choice grade for precision and small-lathe (Swiss-type) turning.
-
Original Sumitomo DNMG432EMU AC830P Carbide Turning Insert – Diamond 55° | Steel DNMG120408
$22.90Add to cartThe Sumitomo DNMG432EMU AC830P is a professional-grade carbide insert designed for carbon and alloy steel turning. Suitable for CNC lathes with appropriate tool holders. Recommended Vc 200-350 m/min roughing, 300-450 m/min finishing. Use through-coolant or high-pressure coolant for optimal results. Available from Hooguu.com with worldwide shipping and competitive pricing. SKU: DNMG432EMU AC830P.
-
Sumitomo CPMT090304N-MU AC6030M Carbide Turning Insert – Diamond 80°, R0.4, MU chipbreaker | Stainless Steel CPMT321
$72.90Add to cartGenuine Sumitomo Electric CPMT090304N-MU AC6030M carbide turning insert with a Diamond 80° (C-type) shape, 11° clearance and countersunk hole, single-sided chipbreaker. Grade AC6030M is a CVD-coated carbide grade: first-choice grade for stainless steel turning.
-
Original Sumitomo AC1030U Carbide Turning Insert – Parallelogram 85° DCGT21.50.5LFX DCGT21.50.5LFX AC1030U DCGT070202 DCGT211
$18.80Add to cartTurning Insert: DCGT21.50.5LFX AC1030U, Carbide – AC1030U, Absotech Bronze Finish, Left Hand, 0.3031″ Long, 0.2500″ Inscribed Circle, 0.0078″ Corner Radius, 55.00 deg D – Diamond (Rhombic) 55-Deg, Ser









