Original Sumitomo DNMG442ENZ AC420K Carbide Turning Insert – Diamond 55° | Cast Iron DNMG120608

Name: Original Sumitomo DNMG442ENZ AC420K Carbide Turning Insert - Diamond 55° | Cast Iron
Brand: Sumitomo
SKU: DNMG442ENZ AC420K
Availability: PreOrder
Rating: 4.6 (25 reviews)

Brand: Sumitomo

Price on request

★★★★⯨ 4.6 (25 reviews)

Turning Insert: DNMG442ENZ AC420K, Carbide – AC420K, Coated Finish, Neutral, 0.6102″ Long, 0.5000″ Inscribed Circle, 0.0313″ Corner Radius, 55.00 deg D – Diamond (Rhombic) 55-Deg, Series DN

Chat & get price on WhatsApp

⚡ Reply within 24h🏭 Factory-direct✅ 100% genuine OEM📦 No minimum order

🚚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

Verified on global marketplaces

Ozon★4.91,679 reviews · 5,188 ordersVerified store ↗AliExpress★4.898.9% positive · 4-year storeVerified store ↗Amazon US★5.0Verified store ↗

Specifications
Brand	Sumitomo
Part No. (MPN)	DNMG442ENZ
Grade	AC420K
Type	Turning Insert
Shape	Diamond 55°
Suitable Material	Cast iron
Category	Diamond 55° (DNMG)

Sumitomo DNMG442ENZ AC420K – Turning Carbide Insert

Turning Insert: DNMG442ENZ AC420K, Carbide – AC420K, Coated Finish, Neutral, 0.6102″ Long, 0.5000″ Inscribed Circle, 0.0313″ Corner Radius, 55.00 deg D – Diamond (Rhombic) 55-Deg, Series DN

Field reports & vendor notes: The AC420K is a tough K20 grade that handles heavy depth of cut and interruptions. All grades are available with the Sumitomo FF Coating (Fine and Flat) for prolonged tool life and chipping … Looking for SUMITOMO, DNMG442ENZ, Diamond Turning Insert? Find it at Grainger.com®. With over one million products and 24/7 customer service we have supplies and solutions for every indu

Key Specifications

Brand	Sumitomo
Model	DNMG442ENZ
Grade	AC420K
Coating	tin
Insert Shape	Diamond 55°
Clearance Angle	0°
Workpiece Materials	Cast Iron
Application	Interrupted Cutting
Geometry	Neutral
Quantity	1 PCS

Grade AC420K Performance Profile

Operators running cast iron with the Sumitomo AC420K typically report stable wear progression rather than catastrophic edge loss. The tin system is the reason: it slows abrasion at the rake face while keeping the substrate from softening at the cutting zone.

Features & Benefits

100% Genuine Sumitomo – Original product with full quality guarantee, traceable batch.
Edge Stability – Substrate chemistry tuned to limit micro-chipping on cast iron interruptions.
Thermal Resistance – tin layer holds hardness above typical cutting-zone temperatures.
Professional CNC Tooling – Compatible with major CNC machine brands (Mazak, DMG, Haas, Doosan).
Ready Stock – In-stock for same-day dispatch from our CNC tooling warehouse.
Optimized Chip Breaker – Engineered chip geometry reduces re-cutting and machine downtime.

Recommended Applications

Interrupted Cutting of cast iron in production CNC lines
Pairs well with through-coolant setups for chip evacuation
Holds dimensional tolerance over multiple indexings (insert)
Designed for shop conditions typical of Sumitomo tooling users worldwide

Buying Considerations

Single-pack option — useful for prototype runs or qualification before bulk commitment. Entry-tier pricing makes this a low-risk option for trialing Sumitomo tooling on a new material.

Tip: Match this insert to a holder whose seat matches the ISO designation. If you’re unsure, send us the holder model and we’ll confirm compatibility before shipping.

Weight	0.1 kg
Dimensions	15 × 18 × 4 cm

Related products

扫码添加微信

Scan to add WeChat

Cart

Your Cart is Empty

Back To Shop

Continue Shopping

Payment Details

Sub Total $0.00

Apply

View Coupons


                                    hooguu10

10% reorder discount — WhatsApp package-insert card (HOOGUU10)

View cart Checkout - $0.00

Cart

Original Sumitomo DNMG442ENZ AC420K Carbide Turning Insert – Diamond 55° | Cast Iron DNMG120608

More from Sumitomo

What Buyers Say

Cart

Cart

Original Sumitomo DNMG442ENZ AC420K Carbide Turning Insert – Diamond 55° | Cast Iron DNMG120608

More from Sumitomo

What Buyers Say

Cart

Original Sumitomo CNMG432EUP AC8035P Carbide Turning Insert - Diamond 80° | Steel, Stainless Steel

Original Sumitomo CNMG433ENZ AC4125K Carbide Turning Insert - Diamond 80° | Steel & More

Original Sumitomo CNMG431EFL-AC5025S Carbide Turning Insert - Diamond 80° | Heat-resistant

Original Sumitomo CNMG433EGU AC830P Carbide Turning Insert - Diamond 80° | Steel, Stainless Steel

Original Sumitomo CNMG643EGZ AC4125K Carbide Turning Insert - Diamond 80° | Cast Iron