S20R-MDQNR11 Internal Boring Bar Tool Holder | Alloy Steel | 107.5° Cutting Edge Angle accommodates DNMG
Price shown is a starting point. Contact us for a precise quote based on your requirements.
Product Name:S20R-MDQNR11 Internal Boring Bar Tool Holder
Overview:The S20R-MDQNR11 Internal Boring Bar Tool Holder is crafted from robust alloy steel, ensuring durability and reliability in machining operations. It features a precise 107.5° cutting edge angle and 0° relief angle, making it suitable for internal turning tasks on CNC lathes. With a 20mm handle diameter and 200mm total length, this tool holder accommodates DNMG inserts (DNMG110404, DNMG110408, DNMG331, DNMG332)
Package Includes:
- S20R-MDQNR11 Tool Holder
- Compatible Clamp Pin Screws and Wrenches
Specifications and Dimensions:
- Tool Holder Type: Internal Boring Bar Tool Holder
- Model: S20R-MDQNR11
- Material: Alloy Steel
- Tool Cutting Edge Angle: 107.5°
- Relief Angle of Blade: 0°
- Handle Diameter: 20mm
- Total Length: 200mm
- Length of Cutting Blade: 11mm
- Pin: CTM511
- Clamp: HL1810
- Screw: ML0625
- Wrench: L2.0 L3.0
- Blade Inserts Compatibility: DNMG110404, DNMG110408, DNMG331, DNMG332
Application: CNC machine tools, CNC lathes Lathe machining cutting
Why Choose S20R-MDQNR11:Precision Machining: The S20R-MDQNR11 is crafted from durable alloy steel and features a precise 107.5° cutting edge angle, ideal for achieving high precision in internal turning operations on CNC lathes.Designed to accommodate DNMG inserts (DNMG110404, DNMG110408, DNMG331, DNMG332)
S20R-MDQNR11 Internal Boring Bar Tool Holder machine boring bar DNMG Carbide Inserts
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Specifications, Features, Insert Compatibility, Applications
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Alloy Steel Construction, CNC Machine Tool, Internal Turning Tools Holder
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Compatible with Standard DNMG Inserts
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107.5° Cutting Edge Angle for Precision Machining
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Robust Construction with 20mm Shank
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Ideal for Various Machining Operations
5-Point Description
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High-Quality Construction: The S20R-MDQNR11 is crafted from durable alloy steel, ensuring longevity and reliability in machining operations.
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Precision Design: Featuring a 107.5° tool cutting edge angle and 0° relief angle, it enables precise internal threading on CNC lathes with minimal tool wear.
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Versatile Compatibility: Designed for use with DNMG inserts (DNMG110404, DNMG110408, DNMG331, DNMG332), accommodating a variety of threading needs.
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Ease of Use: Includes essential accessories such as ML0625 screws and L2.0 L3.0 wrenches for straightforward installation and maintenance.
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Ideal for CNC Applications: Suitable for CNC machine tools, it enhances machining capabilities for industrial settings requiring high precision and efficiency.
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.