BEYOND S20R-SVQBR11 Internal Turning Tool Holder for VBMT 1103 Inserts
✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
⚠️ PLEASE NOTE: TOOL HOLDER ONLY
Carbide inserts shown in images are for demonstration purposes only and are NOT included. Please order compatible inserts (VBMT 1103 / VCMT 1103) separately.
BEYOND S20R-SVQBR11 Internal Turning Tool Holder
1. Product Overview
User Query Context: "Which boring bar is best for high-precision internal copying and profiles on medium-hard steel, and how does tool clearance impact deep-hole chip evacuation?"
The BEYOND S20R-SVQBR11 is a premium-grade, indexable steel internal boring bar engineered specifically for stable profiling and turning inside medium to large bores. Utilizing a screw-down clamping mechanism, it matches perfectly with 35-degree rhombic VBMT 1103 or VCMT 1103 carbide inserts. Its geometry allows an approach angle of 107.5°, significantly minimizing vibration and delivering excellent chip clearance when dealing with deep internal cavities in carbon steels, alloy steels, and stainless steel workpieces.
2. Product Key Features
- Premium Cr-Mo Alloy Steel: Forged from high-strength chromium-molybdenum alloy steel, heat-treated to HRC42-45 for superior rigidity, preventing tool deflection during deep-hole boring operations.
- Flawless 107.5° Lead Angle: Specially optimized clearance angle for multi-directional profiling and clean internal copying without rubbing up against internal shoulders.
- Smooth Chip Evacuation: Engineered to clear micro-chips naturally via its specific shank flute, stopping workpiece scarring and heat accumulation dead in their tracks.
- Anti-Vibration Design: Matte black surface finish reduces friction and absorbs high-frequency vibrations, directly extending tool insert life cycles.
3. Technical Specifications & Cutting Parameters
Model Designation Nomenclature Decoder
Steel Shank
20mm Shank
200mm Length
Separator
Screw Clamp
35° Insert Geometry
107.5° Lead Angle
Normal Clearance
Right-Hand Tool
For VBMT 11..
| Specification Metric | Metric Value | Inch Equivalent System | Inch Value |
|---|---|---|---|
| Model Number | S20R-SVQBR11 | ANSI / Inch Model | A12R-SVQBR3 |
| Shank Diameter (d) | 20 mm | Shank Diameter (Inch) | 0.750" (approx. 3/4 inch) |
| Overall Length (L) | 200 mm | Overall Length (Inch) | 7.87" |
| Minimum Bore (D min) | 24 mm | Minimum Bore (Inch) | 0.945" |
| Compatible Insert | VBMT 1103.. / VCMT 1103.. | ANSI Insert Designation | VBMT 33.. |
Recommended Cutting Parameters
| Material Group | Cutting Speed (Vc) | Feed Rate (f) | Depth of Cut (ap) |
|---|---|---|---|
| Carbon/Alloy Steel (P) | 120 - 240 m/min | 0.08 - 0.25 mm/rev | 0.2 - 1.5 mm |
| Stainless Steel (M) | 90 - 180 m/min | 0.05 - 0.18 mm/rev | 0.2 - 1.2 mm |
Looking for the matching high-performance turning inserts?
🛒 Browse Compatible VBMT 1103 Inserts Collection4. Product Applications
The S20R-SVQBR11 boring tool holder excels across multiple heavy-duty structural operations:
- Precision Internal Copy Profiling: Flawless path tracking on intricate geometries without tool drag.
- Blind & Through-Hole Boring: Deep reach capabilities up to 3 to 4 times the shank diameter without chatter.
- Industries: Extensively utilized across automotive machining lines, aerospace components manufacturing, oil & gas valve fittings, and standard mold-and-die processing.
5. Compatibility Guide
- Lathe Turret Blocks: Standard CNC turning centers, linear gang-tool lathes, and conventional engine lathe tool posts accommodating 20mm shanks.
- Inserts Form Factors: Formally compatible with all VBMT 110302, VBMT 110304, VBMT 110308, VCMT 110304 indexable inserts from major worldwide manufacturers.
6. BEYOND Premium Grade Comparison Matrix
Equip your S20R-SVQBR11 tool holder with the absolute best matching BEYOND proprietary grades depending on target metal hardness levels:
| BEYOND Carbide Grade | Coating Technology | Primary Application Field | Hardness Range |
|---|---|---|---|
| BY8150 | Nano-PVD TiAlN | Universal Steel Finishing to Medium Roughing | HRC 20 - 45 |
| BY8200 | Thick CVD TiCN + Al2O3 | High-Speed Continuous Steel Turning Interrupted Cut | HRC 25 - 50 |
| BY9030 | Premium PVD AlTiCrN | Austenitic / Martensitic Stainless Steels & Alloys | HRC ≤ 38 |
7. Why Choose BEYOND CNC Tools
As a global tier-1 industrial supply agent, BEYOND combines dimensional accuracy with cost-effective metal removal solutions. Our tools deliver interchangeable component compatibility matching global legacy benchmarks at fractions of standard costs.
Global Customer Reviews (Verified Purchases)
"Zero Chatter at 3xD Depth"
Fits perfectly into my Haas turret. Runout is virtually unmeasurable. Extremely satisfied with the steel rigidity on 4140 stock.
— Mark T., United States 🇺🇸"Hervorragende Qualität"
Excellent surface treatment. Holds standard VBMT 11 inserts securely. Thread pocket tolerance is highly precise.
— Hans W., Germany 🇩🇪"Ottimo rapporto qualità prezzo"
Great body finish. Screws and Torx flags provided are robust. Fast delivery across Europe.
— Giovanni M., Italy 🇮🇹"高精度で満足"
The seat pocket is highly stable. Under high feed, chip evacuation functions exactly as specified. Recommended.
— Kenji S., Japan 🇯🇵"Reliable Workhorse Tooling"
Have run it over 40 hours on tough alloy tubes. Still holds index alignment perfectly. Will buy again.
— Dave B., United Kingdom 🇬🇧8. Expert Engineering FAQ
❓ Q1: Does the S20R-SVQBR11 include internal coolant holes?
💡 A: This specific S20R variant features a standard external coolant supply setup. If you require through-coolant lines for deep blind-hole operations, check our dedicated E-SVQBR carbide-anti-vibration internal coolant series.
❓ Q2: What is the exact difference between SVQBR and SVUCR bars?
💡 A: The SVQBR tool utilizes a 107.5° approach angle suited best for profiling and internal shoulder clearing without binding, while SVUCR features a 93° angle engineered primarily for standard forward boring steps.
❓ Q3: Which insert radius size should I pair with this bar?
💡 A: For finishing routines where chatter can occur, select a 0.2mm radius (VBMT 110302). For general performance roughing and continuous cuts, use a 0.4mm (VBMT 110304) or 0.8mm radius (VBMT 110308).
💡 Technical Maintenance & Troubleshooting Advice
Equivalent Model Reference: Sandvik Coromant: A20S-SVQBR11 | ISCAR: A20R-SVQBR-11 | Kennametal: A20SSVQBR11D
Troubleshooting Internal Chatter: If micro-chatter lines manifest on your workpiece interior wall, try minimizing the overhang extension length of the tool holder to under 3 times the shank diameter ($60\text{ mm}$ line), or shift to a positive ground cermet insert profile with an asymmetric chipbreaker configuration.
All BEYOND production tools undergo geometric calibration verification cycles prior to dispatch. Ensure insert torx screws are tensioned uniformly using the included flag driver.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.