S20R-SDQCR11 CNC Internal Boring Bar Tool Holder – Precision 107.5° Cutting Angle | Alloy Steel | 20mm Handle Diameter
Price shown is a starting point. Contact us for a precise quote based on your requirements.
Overview
The S20R-SDQCR11 Mechanical Lathe CNC Internal Boring Bar Tool Holder is engineered for precision and durability in CNC lathe operations. With a cutting edge angle of 107.5° and a 7° relief angle, it ensures accurate and efficient internal boring. Constructed from high-quality alloy steel, this tool holder is designed for extended service life and dependable performance. The 20mm handle diameter and 200mm total length provide superior control and reach, while the S-type screw design ensures secure mounting. Compatible with a variety of DCMT inserts, including DCMT11T302 and DCMT3(2.5)1, it offers flexibility for different machining tasks. The package includes M4*8 screws and a T15 wrench, making setup straightforward and hassle-free.
Key Features
- Cutting Edge Angle: 107.5°
- Relief Angle: 7°
- Material: Alloy Steel
- Handle Diameter: 20mm
- Total Length: 200mm
- Blade Length: 11mm
- Compatible Inserts: DCMT11T302, DCMT11T304, DCMT11T308, DCMT3(2.5)0, DCMT3(2.5)1, DCMT3(2.5)2
- Includes: M4*8 Screws, T15 Wrench
Reasons to Choose
- Reliable Precision: Proven to deliver consistent accuracy for internal boring operations.
- Built to Last: Durable construction for dependable performance over time.
- Versatility: Adaptable to various machining tasks with multiple compatible inserts.
- Ease of Use: Includes all required accessories for a hassle-free setup and operation.
Applications
- CNC Machine Tools: Perfect for precision internal boring and turning tasks in CNC lathes.
- Internal Boring: Ideal for detailed internal cutting across a range of materials.
- Versatile Machining: Compatible with different carbide inserts for various machining needs.
Advantages
- High Precision: Ensures accurate and efficient internal boring with minimal effort.
- Robust and Durable: Alloy steel construction withstands rigorous use for extended tool life.
- Flexible Use: Supports a range of carbide inserts, adapting to different machining requirements.
- User-Friendly: Comes with necessary components for easy installation and setup.
Elevate Your CNC Machining with the S20R-SDQCR11 S20R-SDQCR11 Internal Boring Bar Tool Holder
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107.5° Cutting Edge Angle for Optimal Accuracy
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7° Relief Angle for Efficient Internal Boring
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20mm Handle Diameter for Enhanced Control
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Compatible with Multiple DCMT Inserts
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Robust Construction and Versatile Functionality
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Includes M4*8 Screws and T15 Wrench for Easy Installation
5-Point Description
- Precision Engineering: Achieve accurate internal boring with a 107.5° cutting edge angle and 7° relief angle.
- Durable Construction: Alloy steel design ensures long-lasting performance and reliability.
- Versatile Compatibility: Accommodates various DCMT inserts, including DCMT11T302 and DCMT3(2.5)1.
- Enhanced Control: The 20mm handle diameter and 200mm total length provide superior handling and reach.
- Convenient Installation: Includes M4*8 screws and a T15 wrench for straightforward setup.
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.