BEYOND S16Q-SVJBL11 Left Hand Internal Turning Tool Holder for VBMT 1103
Price shown is a starting point. Contact us for a precise quote based on your requirements.
⚠️ PLEASE NOTE: TOOL HOLDER ONLY
The carbide insert shown in the tool holder images is for demonstration purposes only and is NOT included in the purchase. Please order your compatible inserts (VBMT 1103 / VCMT 1103) separately.
BEYOND S16Q-SVJBL11 Left-Hand Internal Turning Tool Holder
1. Product Overview
User Query Context: "Which left-hand internal boring bar is best for turning a 90-degree square corner in a small diameter bore while keeping vibration low on stainless steel workpieces?"
The BEYOND S16Q-SVJBL11 is a highly rigid, indexable steel left-hand internal boring bar designed specifically for precision boring and internal profiling inside tight cavities. Engineered with a secure screw-down clamping system, it fits standard 35-degree rhombic VBMT 1103 or VCMT 1103 carbide inserts. Its unique 93° approach angle allows machinists to easily face internal 90-degree steps and square shoulders. The specialized body geometry effectively manages radial cutting pressure, channeling forces along the length of the tool shank to reduce chatter and maximize chip evacuation space.
2. Product Key Features
- High-Strength Alloy Steel Body: Forged from premium chromium-molybdenum alloy steel and quenched to HRC42-45, ensuring outstanding core toughness and resistance to deflection during deep boring cuts.
- True Left-Hand (L) 93° Lead Angle: Specially designed geometry for counter-spindle workflows or specific left-hand internal turning profiles, enabling clean profiling paths without tool-body rubbing.
- Precision Screw Clamping Pocket: Low-profile insert pocket paired with high-tensile alloy screws ensures the insert stays completely seated under aggressive cutting conditions, preventing micro-movement.
- Dampened Matte Finish: Treated with a specialized industrial black oxide finish that assists in absorbing high-frequency harmonic vibration, resulting in an enhanced workpiece surface finish.
3. Technical Specifications & Cutting Parameters
Model Designation Nomenclature Decoder
Steel Shank
16mm Shank
180mm Length
Separator
Screw Clamp
35° Insert Geometry
93° Lead Angle
Normal Clearance
Left-Hand Tool
For VBMT 11..
| Specification Metric | Metric Value | Inch Equivalent System | Inch Value |
|---|---|---|---|
| Model Number | S16Q-SVJBL11 | ANSI / Inch Model | A10Q-SVJBL3 |
| Shank Diameter (d) | 16 mm | Shank Diameter (Inch) | 0.625" (5/8 inch) |
| Overall Length (L) | 180 mm | Overall Length (Inch) | 7.09" |
| Minimum Bore (D min) | 20 mm | Minimum Bore (Inch) | 0.787" |
| 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) | 110 - 230 m/min | 0.06 - 0.20 mm/rev | 0.2 - 1.2 mm |
| Stainless Steel (M) | 80 - 160 m/min | 0.05 - 0.15 mm/rev | 0.2 - 1.0 mm |
Looking for matching high-performance left-hand or universal turning inserts?
🛒 Browse Compatible VBMT 1103 Inserts Collection4. Product Applications
The S16Q-SVJBL11 tool holder provides high efficiency across complex internal lathe routines:
- Small Bore Internal Profiling: With a minimum bore requirement of just 20mm, it fits easily into tight chambers for micro-profiling work.
- Square Counter-Boring Steps: The 93-degree approach configuration turns highly precise right-angle internal pockets seamlessly.
- Industrial Application: Used regularly in medical machinery manufacturing, small-diameter pneumatic/hydraulic sleeve valves, automotive electronic housings, and high-precision job shops.
5. Compatibility Guide
- CNC Turret Interface: Slides into standard CNC tool holders, reduction boring sleeves, or conventional lathe blocks optimized for 16mm round shanks.
- Carbide Insert Standard: Seamlessly matches indexable VBMT 110302, VBMT 110304, or VCMT 110304 profiles from BEYOND or any major industrial tooling manufacturer.
6. BEYOND Premium Grade Comparison Matrix
Pair your S16Q-SVJBL11 holder with the ideal BEYOND insert carbide grade matching your raw stock material requirements:
| BEYOND Carbide Grade | Coating Technology | Primary Application Field | Hardness Range |
|---|---|---|---|
| BY8150 | Nano-PVD TiAlN | Universal General Steel Finishing & Profiling | HRC 20 - 45 |
| BY8200 | Thick CVD TiCN + Al2O3 | Continuous Cutting & Long Tool Life Cycles on Carbon Steels | HRC 25 - 50 |
| BY9030 | Premium PVD AlTiCrN | Stainless Steel Profiles, Duplex, & Superalloys | HRC ≤ 38 |
7. Why Choose BEYOND CNC Tools
BEYOND specializes in manufacturing industrial-grade metal cutting tools that combine close-tolerance dimensional accuracy with exceptional value. Our tooling parts are fully compatible with mainstream ISO parameters, ensuring a seamless drop-in fit into your ongoing operations while helping optimize consumable expenses.
Global Customer Reviews (Verified Tooling Purchases)
"Perfect for Left-Hand Turret Sub-Spindle"
Fits cleanly into our citizen Swiss lathe block setup. Center height is perfectly on target, and the insert seat is tightly machined.
— David L., United States 🇺🇸"Präzise Verarbeitung"
Extremely clean thread pitch on the clamping screw pocket. Holds standard VBMT 11 inserts securely. Great value.
— Klaus F., Germany 🇩🇪"Finitura eccellente"
The surface treatment is top quality. It clears micro-chips well inside narrow 22mm holes. Delivered quickly.
— Pietro C., Italy 🇮🇹"剛性が高く、びびりなし"
Excellent vibration damping for a 16mm steel shank. Surface finishes on our alloy sleeves are consistently smooth.
— Sato H., Japan 🇯🇵Includes quality hardware flag drivers. Threads are robust and don't strip out when securing inserts under production runs.
— Arthur P., United Kingdom 🇬🇧8. Expert Engineering FAQ
❓ Q1: How does a Left-Hand (SVJBL) bar differ from a Right-Hand (SVJBR) variant?
💡 A: The SVJBL variant features the insert pocket positioned to face left-hand spindle directions or reverse turret indexing. Ensure your lathe spindle rotation direction ($M03$ vs $M04$) and holder mounting profile match a left-hand orientation before operating.
❓ Q2: What chipbreaker style is recommended for internal deep-hole boring with this tool?
💡 A: For small internal spaces, a positive ground chipbreaker with a tight geometry (such as our -HF or -EF profiles) is best. This forces the metal to break into tight "6"-shaped curls, allowing them to escape easily without birdnesting inside the bore.
❓ Q3: What is the maximum recommended stick-out overhang for this 16mm bar?
💡 A: For premium alloy steel shanks, the optimal overhang ratio limit is up to 3 times the shank diameter ($48\text{ mm}$ extension from the tool holder edge). Extending past this length increases the risk of part deflection or harmonic vibration lines.
💡 Technical Maintenance & Troubleshooting Advice
Equivalent Model Cross-Reference: Sandvik Coromant: A16M-SVJBL11 | ISCAR: A16M-SVJBL-11 | Kennametal: A16MSVJBL11D | Walter Tools: A16Q-SVJBL11
Troubleshooting Bore Deflection: If you experience dimensional taper or vibration lines on your internal workpiece walls, try shifting from a 0.4mm corner nose radius down to a sharp 0.2mm configuration (VBMT 110302). This reduces radial tool contact area and lowers pushback forces.
All BEYOND production tools go through complete quality assurance verification rounds before shipment. Ensure the insert seat pocket is clean and free of debris before clamping a new indexable edge.
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.