S20R-MTUNR16 Internal CNC Boring Bar Tool Holder 20*200mm CNC Lathe Cutter
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Overview: The S20R-MTUNR16 is a robust CNC boring bar tool holder designed for internal turning operations. Crafted from high-quality alloy steel, it features a 20mm diameter handle and a 16mm cutting blade length. Equipped with a secure multi-lock system (M-type), it ensures stability during CNC machining processes. This tool holder includes essential accessories such as the CTM511 pin, HL1810 clamp, ML0620 screws, and wrenches L2.0 and L3.0. Compatible with a range of TNMG carbide inserts (TNMG160404, TNMG160408, TNMG160412, TNMG160416, TNMG331, TNMG332, TNMG333), it is versatile for various cutting applications.
Internal Turning Tools Holder S20R MTUNR16 Boring Bar CNC Lathe Cutter Machine
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Features and Specifications
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Applications and Advantages
Features and Specifications:
- Tool Holder Type: CNC Boring Bar
- Material: Alloy Steel
- Handle Diameter: 20mm
- Total Length: 200mm
- Cutting Blade Length: 16mm
- Tool Cutting Edge Angle: 95°
- Relief Angle of Blade: 0°
- Locking System: Multi-lock (M-type)
- Includes: CTM511 Pin, HL1810 Clamp, ML0620 Screws, Wrenches L2.0 L3.0
- Compatible Inserts: TNMG160404, TNMG160408, TNMG160412, TNMG160416, TNMG331, TNMG332, TNMG333
Applications:
- Ideal for internal turning operations on CNC machine tools and lathes
- Suitable for both roughing and finishing tasks
- Used in boring bar setups for precision machining
Advantages:
- Provides secure and stable tool positioning
- Durable alloy steel construction for longevity
- Versatile compatibility with various TNMG carbide inserts
- Enhances productivity and accuracy in CNC machining
- Essential for achieving high-quality finishes in metalworking
5-point product description:
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Precision CNC Boring Bar Holder: The S20R-MTFNR16 is a precision-engineered CNC boring bar holder designed for exceptional performance in CNC lathes and machining centers.
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Durable Alloy Steel Construction: Crafted from high-quality alloy steel, this tool holder offers durability and reliability in demanding machining applications.
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Optimized Design for Stability: Featuring a multi-lock system (M-type), the S20R-MTFNR16 ensures secure tool positioning and stability during machining operations, enhancing machining accuracy.
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Versatile Compatibility: Compatible with a range of TNMG carbide inserts (TNMG160404, TNMG160408, TNMG160412, TNMG160416, TNMG331, TNMG332, TNMG333), it supports various cutting tasks from roughing to finishing.
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Essential Tool for CNC Machining: Ideal for internal turning tasks, the S20R-MTFNR16 excels in both roughing and precision machining, making it indispensable for manufacturing industries requiring high-quality surface finishes and dimensional accuracy.
How to choose the right lathe tool holder：
- Type of Operation: Determine whether you need the tool bar for turning, milling, boring, threading, or another specific machining operation.
- Material: Consider the material you will be machining (e.g., steel, aluminum, titanium) as this influences the type of cutting tool and tool bar required.
- Understand Tool Bar Specifications:Tool Holder Type: Different operations require specific tool holders (e.g., turning tool holders, milling tool holders, boring bars).
- Size and Dimensions: Check the diameter of the tool bar and the length of the cutting blade.
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Insert Compatibility: If using inserts, ensure they are compatible with the tool bar model and type. Check for availability of inserts suitable for your specific machining requirements.
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.