ISCAR S-SDUCR 12-3 Internal Turning Tool Holder / Boring Bar
Enhance your lathe’s capabilities with the ISCAR S-SDUCR 12-3 Internal Turning Tool Holder. This durable 12mm steel boring bar is engineered for 55-degree diamond inserts, delivering exceptional rigidity, reduced vibration, and high precision for professional internal machining and metalworking.
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ISCAR S-SDUCR 12-3 Internal Turning Tool Holder / Boring Bar
The ISCAR S-SDUCR 12-3 is a premium steel shank internal turning tool holder and boring bar engineered for high-precision metalworking applications. Featuring an industry-standard SDUCR style geometry, this tool is specifically designed to securely hold 55-degree diamond inserts, ensuring optimal cutting performance, excellent chip evacuation, and superior surface finishes. The robust 12mm shank diameter provides exceptional rigidity to minimize vibration and deflection during deep internal turning and boring tasks. Each unit comes complete with the necessary clamping screw and wrench, making it a ready-to-deploy tooling solution for professional CNC machining centers and manual lathe operations.
Technical Specifications:
- Brand: ISCAR
- Model: S-SDUCR 12-3
- Tool Type: Internal Turning Tool Holder / Boring Bar
- Shank Diameter: 12mm
- Shank Material: Steel
- Geometry Style: SDUCR
- Insert Compatibility: Designed for 55-degree diamond inserts (DCMT / DCGT)
- Included Accessories: Clamping screw and torx wrench

| Brand | ISCAR |
|---|---|
| Model | S-SDUCR 12-3 |
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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

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