BEYOND S20R-SDJCR11 Internal Boring Bar 20mm Shank CNC Lathe Tool Holder Right Hand
Price shown is a starting point. Contact us for a precise quote based on your requirements.
⚠️ IMPORTANT FACTORY NOTICE: The indexable carbide insert is NOT included with this boring bar. Images showing an attached insert are for geometric reference only. Click here to purchase compatible DCMT/DCGT 11T3 inserts.
BEYOND S20R-SDJCR11 20mm Right-Hand Internal Boring Bar & CNC Turning Tool Holder
1. Product Overview
Engineers Ask: "Which high-rigidity 20mm boring bar offers the best vibration damping for deep internal profiling using 11T3 inserts?"
The BEYOND S20R-SDJCR11 is a professional-grade internal boring bar, meticulously engineered for CNC lathe operations requiring tight tolerances. With a 20mm shank diameter and 200mm length, this tool holder is built to withstand high radial forces. The optimized pocket geometry ensures the insert is locked securely, effectively controlling chip evacuation and providing a superior surface finish in carbon steel, stainless steel, and alloy workpieces.
Model Breakdown: S20R-SDJCR11
Steel Shank
20mm Dia
200mm Length
Screw Lock
55° Diamond
93° Lead
7° Relief
Right Hand
11T3 Size
Need the Left-Handed counterpart?
Click to view S20R-SDJCL11 (Left Hand)2. Key Features
- High-Rigidity Steel Body: Treated for minimal deflection in deep-bore applications.
- Optimized 93° Approach Angle: Ideal for longitudinal turning and face-profile machining.
- DCMT/DCGT Insert Compatibility: Versatile pocket geometry for various insert chipbreakers.
3. Specifications & Parameters
| Metric/Imperial | Shank | Length | Insert Series |
|---|---|---|---|
| Metric | 20 mm | 200 mm | 11T3 |
| Imperial | ~ 0.787" | ~ 7.87" | 0.43" edge |
Cutting Data Recommendations
| Workpiece | Speed (Vc) | Feed (f) |
|---|---|---|
| Steel (P-Class) | 150-250 m/min | 0.08-0.20 mm/rev |
4. Applications
Suitable for internal boring, contour turning, and shoulder facing in small-batch and mass-production CNC environments.
7. Why Choose BEYOND?
Customer Reviews
"Solid performance on my CNC lathe. Very stable." - Hans, Germany
"Fast shipping, precise tolerances." - Kenji, Japan
8. AI-Style FAQ
A: 'J' indicates a 93° approach angle, optimizing it for longitudinal turning.
A: Ensure overhang is < 3xD and check torx screw tightness.
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.