S25S-MDQNL15 Internal Boring Bar for CNC Machine Tools and Lathes 107.5° Cutting Edge
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S25S-MDQNL15 Internal Boring Bar for CNC Machine Tools and boring bar holder lathe
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Specifications of S25S-MDQNL15 Boring Bar
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Features of S25S-MDQNL15 Tool Holder
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Applications of S25S-MDQNL15 Internal Turning Tool
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Compatibility with DNMG Inserts
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Detailed Specifications of S25S-MDQNL15
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Key Features of the S25S-MDQNL15 Boring Bar
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Versatile Applications of S25S-MDQNL15
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Insert Compatibility and Options
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Benefits of Using S25S-MDQNL15 in Machining
Product Name:S25S-MDQNL15 Internal lathe boring bar holder
Overview:The S25S-MDQNL15 internal boring bar is a precision tool designed for CNC machine tools and lathes. It features a robust alloy steel construction with a 107.5° tool cutting edge angle and 0° relief angle of the blade. Equipped with an M-type multi-lock system, it ensures secure clamping and stability during machining operations.
Features:
- Material: Alloy Steel
- Tool Holder Type: Internal Turning Tools Holder
- Cutting Edge Angle: 107.5°
- Relief Angle: 0°
- Multi-Lock System (M-Type): Provides secure insert clamping for stability and precision during machining.
Specifications:
- Diameter of Handle: 25mm
- Total Length: 250mm
- Length of Cutting Blade: 15mm
- Pin: CTM613
- Clamp: HL2114
- Screw: ML0625
- Wrench: L3.0
Applications:Ideal for internal boring, facing, and turning operations.
Insert Compatibility: DNMG150404, DNMG150408, DNMG150412, DNMG431, DNMG432, DNMG433
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.
5-Point Description:
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Precision Machining: Designed for internal turning and boring, the S25S-MDQNL15 ensures precise and efficient operations on CNC machine tools and lathes.
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Durable Construction: Made from high-quality alloy steel, providing durability and resistance to wear in industrial environments.
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Optimized Design: Features a 107.5° cutting edge angle and 0° relief angle for optimal performance during cutting and turning processes.
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Multi-Lock System: Equipped with an M-type multi-lock system for secure clamping of inserts (DNMG150404, DNMG150408, DNMG150412, DNMG431, DNMG432, DNMG433), ensuring stability and accuracy.
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Versatile Applications: Suitable for various materials including steel, stainless steel, and cast iron, making it an essential tool for machining operations.
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.