BEYOND S20R-SVUBR11 Boring Bar | 20mm Right Hand Tool Holder for VBMT 1103
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✓ 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
BEYOND S20R-SVUBR11 Indexable CNC Internal Right-Hand Profiling Boring Bar (Fits VBMT 1103)
1. Product Overview
"Which medium-duty 20mm right-hand boring bar provides optimal side clearance and suppresses micro-chatter during deep internal profiling with VBMT 1103 positive inserts?"
The BEYOND S20R-SVUBR11 is a highly precise, industrial-grade indexable internal boring bar engineered for high-accuracy right-hand profiling, complex taper pocketing, and 93-degree clearance turning inside restrictive bore geometries. Forged from high-tensile alloy structural steel and multi-stage oil-quenched to HRC 42-47, this solid 20mm shank delivers massive structural stiffness, effectively eliminating critical tool deflection and harmonic micro-chatter over deep internal reaches up to 4xD (80mm). Superbly optimized for intricate copy turning paths, the precision 5-axis machined pocket features an exact seating alignment designed exclusively to secure 35-degree positive rhombic VBMT 1103 or VCGT 1103 inserts. By combining a rigid 20mm steel bar with a 7° positive insert pocket configuration, this assembly drastically lowers radial cutting resistance, ensures effortless chip evacuation, and prevents rubbing inside narrow industrial profiles. The specialized SVUBR right-hand geometry directs heavy cutting forces axially back into the lathe turret, guaranteeing superior part concentricity, exceptional dimensional repeatability, and a mirror-like surface finish.
2. Product Core Advantages (Key Features)
- Rigid Quenched Steel Shank (20mm): High-tensile alloy steel dampening capacity eliminates harmonic chatter across deep internal reaches up to 80mm.
- 93° Approach Geometry (SVUBR Right-Hand Layout): Delivers pristine tool clearance for seamless internal profiling, pocket contouring, and back-boring.
- Optimized for VBMT 1103 Inserts: Thinner, nimble 11mm insert edge configuration reduces cutting forces, allowing a rigid 20mm bar to operate in smaller bores without body dragging.
- Industrial Black-Oxide Shielding: Premium anti-wear treatment resists heat deformation and blocks corrosion from water-soluble CNC coolants.
3. Technical Specifications & ISO Nomenclature
| Dimension Attributes | Metric System Specifications | Imperial Equivalent Values |
|---|---|---|
| Model Nomenclature | S20R-SVUBR11 (BEYOND) | A12R-SVUBR3 (Standard Inch Style Equivalent) |
| Shank Clamping Diameter | 20 mm | 0.787 inch (Standard 3/4" Turret Bushing Fitment) |
| Approach Angle / Lead | 93 Degrees (SVUBR Configuration) | 93 Degrees (SVUBR Configuration) |
| Overall Tool Length | 200 mm | 7.87 inches |
| Minimum Boring Diameter (D-min) | 24 mm | 0.945 inches |
| Perfectly Compatible Inserts | VBMT 1103** / VCGT 1103** (35° Positive) | VBMT 33* Series (e.g., VBMT 331 / VBMT 332) |
| Fastener Parts Assembly | M2.5 Insert Screw / Torx T8 Drive Wrench | M2.5 Insert Screw / Torx T8 Drive Wrench |
Recommended Cutting Parameters for VBMT 1103 Indexing Setup
| Workpiece Material Substrates | Target Line Cutting Speed (Vc) & Feed Speed (f) Pairs |
|---|---|
| Carbon & Alloy Steels (P-Class / e.g., 4140, 1045) | Vc: 140-240 m/min (460-780 sfm) | f: 0.05-0.18 mm/rev (0.002-0.007 ipr) |
| Stainless Steel Alloys (M-Class / 304, 316) | Vc: 90-160 m/min (295-525 sfm) | f: 0.04-0.12 mm/rev (0.0015-0.005 ipr) |
| Aluminum & Copper Alloys (N-Class / With VCGT) | Vc: 250-650 m/min (820-2130 sfm) | f: 0.03-0.20 mm/rev (0.001-0.008 ipr) |
Looking for premium 35-degree positive VBMT 1103 indexable carbide inserts to match this toolholder shank?
Source BEYOND VBMT1103 Inserts & Toolbars Here →4. Industrial Application Scenarios
- Intricate Internal Profiling & Copy Turning: Engineered specifically for processing multi-angle profiling passes and tapered back-boring steps in medium-sized mechanical housings.
- 93-Degree Internal Clearance Pocketing: The specialized SVUBR orientation allows the bar head to drop into restrictive entry chambers while maintaining maximum clearance along long internal walls.
- High-Efficiency Deflection Mitigation: Pairing the solid 20mm core with a sharp positive 11mm insert shape creates localized shearing actions, minimizing tool push-off in deep industrial tubes down to 24mm bore entry.
5. Equipment & Tool Compatibility
- CNC Equipment & Turrets: Mounts firmly into standard 20mm boring bar holders, split bushings, or quick-change toolposts.
- Universal Insert Clamping: Tailored for ISO specification 35° positive single-sided VBMT 1103** or VCGT 1103** inserts across all major manufacturers.
6. BEYOND Proprietary Carbide Grade Matrix for VBMT
Pair your 20mm boring shank with the correct BEYOND carbide grade to optimize chipbreaking performance under heavy load:
| BEYOND Grade | Coating Technology | Material Application Intent | Global Equivalent Grade |
|---|---|---|---|
| BY1030 | CVD Multi-Layer TiCN + Al2O3 | General carbon and heavy structural alloy steel internal finish-to-medium boring. | Sandvik GC4325 / Korloy NC3220 |
| BY8020 | PVD High-Density Nano-AlTiN | Stainless steel castings (304/316) and high-temperature nickel-chrome superalloys. | Sandvik GC1115 / Kennametal KC5010 |
| BYC25 | Uncoated Ti-Based Cermet Matrix | High-speed precision micro-boring to achieve a mirror-gloss surface finish. | Kyocera TN60 / Mitsubishi NX2525 |
7. Why Choose BEYOND Cutting Systems
Each BEYOND internal boring shank is engineered for strict dimensional repeatability across automated B2B production lines. Machined on precision 5-axis setups, our pocket geometries guarantee dead-on center alignment to prolong indexable edge life.
"Excellent profiling bar. The compact 11mm insert size on this 20mm shank lets me get deep into tight internal shoulders without rubbing. Holds size perfectly over long CNC production batches."
"Hervorragende Qualität. Der Plattensitz passt perfekt für VBMT 110304. Die Späne fließen bei Innenkonturen sehr gut ab, ohne zu verknäueln. Sehr zu empfehlen für CNC-Drehmaschinen."
"Bareno rigido. Ottima finitura superficiale accoppiato con l'inserto BYC25 cermet. Prezzo competitivo rispetto ai marchi europei."
"20mmの剛性は素晴らしい。11mmのチップサイズのおかげで、狭い内径でも干渉せずに倣い加工ができます。ビビりもなくコストパフォーマンス最高です。"
"Solid steel build. Pocket clearance is highly accurate for deep profile copying. Highly reliable on batch work."
8. Technical FAQ & Troubleshooting Guide
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.