BEYOND S16Q-SVJBL11 Left Hand Internal Turning Tool Holder for VBMT 1103
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⚠️ 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.
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.