S20R-MVUNR16 Internal Boring Bar Tool Holder | CNC Lathe Tool 20*200mm Alloy Steel, 95° Cutting Edge Angle
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S20R-MVUNR16 Internal Boring Bar - Alloy Steel, 95° Cutting Edge Angle
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High Precision Tool Holder for CNC Lathes
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Durable and Reliable Multi-Lock System
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Compatible with Standard VNMG Inserts
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Overview of S20R-MVUNR16 Internal Boring Bar
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Specifications of S20R-MVUNR16 Boring Bar
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Applications of S20R-MVUNR16 Boring Bar
Overview:
The S20R-MVUNR16 Internal Boring Bar is a precision tool holder designed for efficient machining in CNC machine tools and CNC lathes. It is made from durable alloy steel and features a multi-lock system (M-type) for secure tool holding. With a cutting edge angle of 95° and a length of 16mm, this tool holder ensures precise and effective cutting performance. It comes complete with VNMG160404, VNMG160408, VNMG160412, VNMG331, VNMG332, and VNMG333 blades, offering versatility across various machining applications.
Detail Page:
- Material: Alloy Steel
- Tool Type: Internal Boring Bar
- Cutting Edge Angle: 95°
- Multi-Lock System: M-type
- Diameter of Handle: 20mm
- Total Length: 200mm
- Length of Cutting Blade: 16mm
- Included Components: VNMG160404, VNMG160408, VNMG160412, VNMG331, VNMG332, VNMG333 blades
- Compatibility: Pin CTM511, Clamp HL2114, Screw ML0625, Wrench L2.0/L3.0
Application:
The S20R-MVUNR16 Internal Boring Bar is primarily used in CNC machine tools and CNC lathes, making it ideal for precision boring operations. It is also suitable for use in boring bar sets, ensuring efficient and accurate machining of various materials.
Advantages:
- Precision Machining: Ensures accurate and smooth cuts with its 95° cutting edge angle.
- Durability: Made from alloy steel for long-lasting performance in demanding machining environments.
- Versatility: Compatible with a range of VNMG inserts for diverse machining applications.
- Secure Grip: Features a reliable multi-lock system (M-type) for stable tool positioning.
- Complete Set: Includes necessary components like pins, clamps, screws, and wrenches for immediate use.
Package Includes:
- S20R-MVUNR16 Tool Holder
- Compatible Clamps, Pins, Screws, and Wrenches
5-Point Product Description:
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Precision Machining: Crafted from high-quality alloy steel, this internal boring bar ensures precise machining operations, enhancing productivity and surface finish in CNC machine tools and lathes.
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Versatile Tool Holder: Designed for versatility, it accommodates various blade sizes (VNMG160404, VNMG160408, VNMG160412, VNMG331, VNMG332, VNMG333), allowing flexibility in turning applications.
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Sturdy Construction: Featuring a 20mm diameter handle and a total length of 200mm, this tool holder offers robustness and stability during heavy-duty cutting tasks, supported by the M-type multi-lock system for secure tool positioning.
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Optimized Cutting Edge: The 95° cutting edge angle with 0° relief angle ensures efficient chip removal and reduces cutting forces, contributing to extended tool life and consistent performance.
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Comprehensive Package: Complete with accessories including CTM511 pin, HL2114 clamp, ML0625 screws, and L2.0 L3.0 wrenches, this set provides everything needed for immediate use and maintenance.
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.