S20R-MDQNR15 Internal Boring Bar Tool Holder for CNC Lathe - Alloy Steel, Compatible with DNMG Inserts
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S20R-MDQNR15 S20R MDQNR15 Internal Boring Bar Tool Holder , 20mm Diameter boring bar machine
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Alloy Steel Construction CNC Lathe Tool Holder
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DNMG Insert Compatibility
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20mm Diameter Handle
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Multi-Lock System (M-type)
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Precision Machining Tool
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Internal Turning Operations
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Secure Tool Clamping
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Durable Alloy Steel
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CNC Machine Tool Accessories
Product Name:S20R-MDQNR15 Internal lathe boring bar holder
S20R-MDQNR15 Overview:The S20R-MDQNR15 is a high-performance internal boring bar designed for precision machining operations on CNC machine tools and lathes. It is crafted from durable alloy steel, ensuring reliability and longevity in demanding industrial environments.
Features:
- Material: Alloy Steel
- Tool Holder Type: Internal Turning Tools Holder
- Cutting Edge Angle: 107.5°
- Relief Angle: 0°
- Insert Compatibility: DNMG150404, DNMG150408, DNMG150412, DNMG431, DNMG432, DNMG433
- Multi-Lock System (M-Type): Provides secure insert clamping for stability and precision during machining.
Specifications:
- Diameter of Handle: 20mm
- Total Length: 200mm
- Length of Cutting Blade: 15mm
- Pin: CTM613
- Clamp: HL2114
- Screw: ML0625
- Wrench: L3.0
Benefits:
- Durability: Made from robust alloy steel for extended tool life.
- Precision: Advanced cutting edge geometry ensures efficient material removal.
- Versatility: Compatible with a wide range of DNMG inserts for diverse machining needs.
- Ease of Use: Features a comprehensive set including screws, wrenches, and clamps for convenient setup.
Applications:Ideal for internal boring, facing, and turning operations.
5-Point Description
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High-Performance Internal Boring Bar:The S20R-MDQNR15 is designed for internal boring operations with precision and durability in mind, suitable for CNC machine tools and lathes.
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Robust Alloy Steel Construction:Crafted from high-quality alloy steel, ensuring excellent strength and wear resistance during machining tasks.
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Advanced Cutting Edge Geometry:Features a cutting edge angle of 107.5° and a relief angle of 0°, optimized to enhance cutting efficiency and tool life.
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Multi-Lock System (M-Type):Incorporates a multi-lock system (M-type) for secure insert clamping, providing stability and accuracy during machining operations.
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Versatile Insert Compatibility:Compatible with a range of DNMG inserts (DNMG150404, DNMG150408, DNMG150412, DNMG431, DNMG432, DNMG433),
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.