S20R-MDWNL11 Internal Boring Bar | CNC Lathe Tool Holder DNMG Insert carbide boring bar
Price shown is a starting point. Contact us for a precise quote based on your requirements.
S20R-MDWNL11 Internal Boring Bar CNC Lathe Cutter Machine S20R MDWNL11 lathe boring bar holder
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Overview
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Specifications
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Applications
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Accessories
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Specifications of S20R-MDWNL11 Internal Boring Bar
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Applications of S20R-MDWNL11 Boring Bar
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Accessories Included with S20R-MDWNL11
Features:
- Material: Alloy Steel
- Tool Holder Type: Internal Boring Bar, Left Tool Holder
- Cutting Edge Angle: 62.5°
- Relief Angle of Blade: 0°
- Diameter of Handle: 20mm
- Total Length: 200mm
- Length of Cutting Blade: 11mm
- Pin: CTM511
- Clamp: HL1810
- Screw: ML0625
- Wrench: L2.0 L3.0
- Insert Compatibility: DNMG110404 DNMG110408 DNMG331 DNMG332
5-Point Description and Overview:
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Precision Machining Tool: The S20R-MDWNL11 is a right-hand internal boring bar designed for CNC machine tools and lathes, crafted from durable alloy steel.
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Optimized Cutting Edge: Features a 62.5° cutting edge angle and 0° relief angle, ensuring efficient chip control and smooth surface finishing during internal turning operations.
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Multi-Lock System: Equipped with an M-type multi-lock system, providing secure clamping and stability for precise machining.
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Dimensions: Handle diameter of 20mm, total length of 200mm, and a cutting blade length of 11mm, offering versatility and ease of handling.
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Compatibility and Accessories: Comes with essential accessories including CTM511 pin, HL1810 clamp, ML0620 screw, L2.0 and L3.0 wrenches, and supports DNMG110404, DNMG110408, DNMG331, and DNMG332 inserts.
Applications:
- Internal Turning: Ideal for internal turning operations on CNC lathes and machine tools. The 62.5° cutting edge angle and secure clamping ensure precise and efficient machining of internal surfaces.
- Boring Operations: Well-suited for boring applications where precise diameter adjustments and smooth finishes are required.
- Facing Operations: Capable of performing facing operations to create flat surfaces on workpieces.
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Grooving and Parting: Suitable for grooving and parting operations, enabling clean and controlled cuts in various materials.
General Purpose Machining:It accommodates a range of DNMG inserts,
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.