C20R-SDQCR11 Tungsten Steel Boring Bar Holder – High Precision CNC Tool for Right Cut, 23mm Hole Diameter carbide holderr
Price shown is a starting point. Contact us for a precise quote based on your requirements.
BEYOND C20R-SDQCR11 Internal Tungsten steel C20R-SDQCR11 SDQCR11 C20R SDQCR11 CNC Lathe Cutter Holder Machine Metal Tools
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Built to Last: Tungsten Steel Construction for Maximum Durability and Corrosion Resistance
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Easy Setup & Optimal Performance – Includes Wrench, Screws, and DCMT11T3 Insert Compatibility
Product parameters:
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Tool Holder Model: C20R-SDQCR11
- Tool Holder Material : Tungsten steel
- Cutting direction : Right cut
- Minimum processing hole diameter : 23mm
- Length of cutting tool : 200mm
- Diameter of cutting tool : 20mm
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Applicable blade : DCMT11T3
- Screw : M4*8
- Wrench : T15
- Package Contents : 1 * Turning tool holder, wrench and screws (blades not included)
Product Highlights
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23mm Minimum Processing Hole Diameter, 200mm Length, 20mm Diameter:
The C20R-SDQCR11 boring bar holder is designed to handle machining projects with a minimum hole diameter of 23mm and a cutting tool length of 200mm, providing high accuracy and versatility. -
Made of High-Quality Tungsten Steel:
Crafted from premium tungsten steel, this tool holder offers exceptional durability and resistance to wear and corrosion, ensuring reliable performance even in demanding machining environments. -
Maintains Tight Tolerances for Superior Performance:
Designed for precision, this boring bar holder maintains tight tolerances, ensuring smooth, efficient cutting and optimal performance across a wide range of CNC machining tasks. -
Strong Shock Resistance for Extended Service Life:
Built with advanced shock-resistant features, this tool holder is engineered to withstand heavy cutting forces and reduce wear, extending its service life and maintaining consistent cutting performance. -
Easy Installation with Complete Accessory Kit:
The tool holder includes all necessary components for installation, including M4*8 screws and a T15 wrench, allowing for a quick and easy setup in your CNC lathe system.

Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.