S20R-SCLNR12 Internal Threading Boring Bar Tool Holder | boring bar holder lathe
Price shown is a starting point. Contact us for a precise quote based on your requirements.
Overview: The S20R-SCLNR12 is a specialized tool holder designed for internal threading and boring operations in CNC machine tools and lathes. It features a robust construction from alloy steel, ensuring durability and precision in machining tasks.
Specifications and Dimensions:
- Model: S20R-SCLNR12
- Type: Internal Threading Boring Bar Tool Holder
- Material: Alloy Steel
- Cutting Edge Angle: 95°
- Relief Angle of Blade: 0°
- Handle Diameter: 20mm
- Total Length: 200mm
- Length of Cutting Blade: 12mm
- Screw Size: M4.5×14
- Wrench Size: T20
- Compatible Blades: CNMT120404, CNMT120408, CNMT120412, CNMT120416, CNMT431, CNMT432, CNMT433, CNMT434
Package Includes:
- S20R-SCLNR12 Tool Holder
- Compatible Screws and Wrenches
S20R-SCLNR12 Internal Threading Boring Bar Tool Holder boring bar holders CNMT inserts
-
Specifications, Features, Insert Compatibility, Applications
-
Alloy Steel Construction, CNC Machine Tool, Internal Turning Tools Holder
-
95° Cutting Edge Angle for Precision Machining
-
Robust Construction with 20mm Shank
-
Ideal for Various Machining Operations
5-Point Description:
- Precision Boring Bar for Internal Threading:Designed for precise internal threading operations, the S20R-SCLNR12 boring bar offers reliable performance in CNC machine tools and lathes
- High-Quality Alloy Steel Construction:Made from durable alloy steel, ensuring longevity and resistance to wear during machining processes
- Optimized Cutting Edge Geometry:Features a cutting edge angle of 95° with a relief angle of 0°, promoting efficient chip removal and smooth cutting action.
- Versatile Blade Compatibility:Compatible with a range of CNMT inserts (CNMT120404, CNMT120408, CNMT120412, CNMT120416, CNMT431, CNMT432, CNMT433, CNMT434), offering flexibility for various threading applications.
- Easy Handling and Installation:Comes with an M4.5×14 screw and T20 wrench for straightforward assembly and adjustments on CNC lathes and machine tools.
Why Choose S20R-SCLNR12:
- Durable Construction and Optimized Cutting Edge
- Precise machining with a reliable Screw type system.
- Wide compatibility with standard CNMT inserts.
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.