SUMITOMO 3NU-TPGA221LS Carbide Cutting Insert
Enhance your precision metalworking operations with the SUMITOMO 3NU-TPGA221LS (ISO designation: 3NU-TPGA110304LS) indexable cutting insert. Manufactured in Japan by Sumitomo Electric, this triangular positive-rake insert features a secure center hole design and is crafted from the high-performance BN7500 grade. Specifically engineered for finish machining (F), it delivers exceptional wear resistance, prolonged tool life, and an outstanding surface finish. Whether you are running light or even cuts, this insert ensures reliable and consistent performance under demanding turning applications.
Technical Specifications:
- Brand: SUMITOMO Electric
- Model Number: 3NU-TPGA221LS
- ISO Designation: TPGA110304 (3NU-TPGA110304LS)
- Insert Shape: Triangular, Positive-Rake with Center Hole
- Material Grade: BN7500
- Application: Finish Machining (F)
- Recommended Cutting Speed (Vc): 200 (50-300) m/min / 660 (160-860) SFM
- Recommended Feed Rate (f): 0.1 (0.03-0.3) mm/rev / 0.004 (0.001-0.012) IPR
- Country of Origin: Made in Japan

| Brand | Sumitomo |
|---|---|
| Model | 3NU-TPGA221LS |
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Shipping policy
If you are buying multiple items, please contact us before checking out so we can get you the best combined rate for shipping.
Our default shipping rate is $100, which is enough to cover the cost of most shipments, but it is not our expected shipping rate. Due to the varying weights and sizes of products and customer locations, please contact us with your location and the products you are interested in to get the best current shipping rates.
ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
SUMITOMO 3NU-TPGA221LS Carbide Cutting Insert (Indexable Insert)
Genuine SUMITOMO 3NU-TPGA221LS (TPGA110304) triangular indexable cutting insert, grade BN7500. Engineered in Japan for superior precision finish machining, offering optimal wear resistance and tool life for your turning operations.

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