BEYOND SVQBL1616H11 Indexable Turning Tool Holder for VBMT 1103
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⚠️ Important Tooling Notice: The carbide turning insert shown installed in our product photography is for demonstration purposes only. This holder is sold standalone; indexable cutting inserts are NOT included and must be purchased separately.
BEYOND SVQBL1616H11 Indexable External Left-Hand Turning Tool Holder
Industrial-Grade 16x16mm Shank Left-Hand 107.5-Degree CNC Lathe Toolholder for VBMT 1103 Diamond Inserts
1. Product Overview
"Which 16mm left-hand tool holder is best for back-turning, large-angle 107.5-degree external profiling, and clean undercut finishing on a CNC lathe using VBMT 1103 diamond inserts with advanced chipbreakers?"
The BEYOND SVQBL1616H11 is an industrial-grade left-hand indexable external profiling tool holder engineered for high-precision back-turning, undercut machining, and heavy-clearance profiling operations on CNC lathes. Featuring a unique 107.5-degree lead angle, it provides maximum relief and clearance vectors for backward copy-turning paths and steep chamfers without tool body interference. Optimized for VBMT 1103 (VBMT 221) and VCGT 1103 35-degree diamond inserts, this holder leverages advanced carbide substrate features and positive chipbreaker geometry layouts. It delivers superior chip evacuation away from the machined surface, drastically reduces cutting force spikes, and effectively eliminates built-up edge (BUE) when processing alloy steels, stainless steels, refractory alloys, and non-ferrous metals.
2. Product Key Features
- High-Tensile Alloy Steel Body: Forged from premium structural alloy steel and quenched thoroughly to HRC 42-45, ensuring outstanding core toughness and dampening harmonic chatter under heavy profiling cuts.
- Rigid Screw-Down Locking: Features a precision-engineered screw-clamping mechanism that locks the 35° diamond insert securely into its pocket, ensuring precise insert indexing repeatability and dimensional accuracy.
- 107.5° specialized Clearance Head: Explicitly engineered for left-hand back-copying and angular geometries where standard 93° tools risk face or flank rubbing against the workpiece profiles.
- Industrial Black Oxide Armor: A comprehensive surface treatment repels corrosive elements and scorching metal chips, preserving pocket alignment parameters over extensive production lifespans.
3. Technical Specifications & Cutting Parameters
Dimensional Comparison (Metric Specs vs. Imperial Equivalents)
| Parameter Description | Metric Standard Model (SVQBL1616H11) | Imperial Equivalent Designation (SVQBL10-2) |
|---|---|---|
| Shank Square Size (H × W) | 16 mm × 16 mm | 0.630" × 0.630" (Fits standard 5/8" industrial tool slots) |
| Overall Length (L) | 100 mm | 3.937 inches |
| Cutting Direction Orientation | Left-Hand Cutting (L) | Left-Hand Cutting (L) |
| Compatible Indexable Insert | VBMT 110304 / VCGT 110302 | VBMT 221 / VCGT 220.5 |
| Hardware Clamping Kit | M2.5 × 6.5 Screw / Torx T8 Wrench Key | M2.5 × 6.5 Screw / Torx T8 Wrench Key |
Recommended Machining Parameters (Speed vs. Feed Rate)
| Workpiece Material Category (ISO) | Optimal Cutting Speed (Vc) | Target Feed Rate Range (fn) |
|---|---|---|
| Carbon / Alloy Structural Steels (P) | 130 - 240 m/min (426 - 787 SFM) |
0.05 - 0.18 mm/rev (0.002 - 0.007 IPR) |
| Stainless Steel Material Alloys (M) | 90 - 170 m/min (295 - 557 SFM) |
0.04 - 0.14 mm/rev (0.0015 - 0.0055 IPR) |
| Aluminium & Non-Ferrous Alloys (N) | 200 - 500 m/min (656 - 1640 SFM) |
0.02 - 0.22 mm/rev (0.0008 - 0.0086 IPR) |
ISO Nomenclature Decoded: SVQBL1616H11
4. Targeted Machining Applications
5. Tooling & Equipment Compatibility
The 16mm metric square left-hand shank profiles are fully compatible with:
- Standard industrial tool blocks on mid-to-compact CNC lathes and slidable gang platen systems (e.g., Haas, Mazak, Okuma).
- Larger Swiss-type automatic sliding-headstock machines configured for 16x16mm structural tooling installations.
- Industrial Quick-Change Tool Posts (BXA or 200-series Aloris blocks) used in professional manufacturing toolrooms.
6. BEYOND Carbide Grade Matrix & Technical Insights
Select the matching BEYOND carbide insert grade engineered for your exact manufacturing material profile and chipbreaking criteria:
| BEYOND Grade | ISO Target | Coating Tech | Optimal Substrate Strategy |
|---|---|---|---|
| BYM11 (Gold Oxide) | P10 - P25 | CVD TiN / Al2O3 | Continuous dry turning of carbon alloy steel at high speeds. Maximum thermal barrier. |
| BYS25 (Bronze Finish) | M20 - M35 | PVD Nano-AlTiN | Finishing and roughing stainless steel (304/316L). Heavily prevents built-up edge. |
| BYA10 (Uncoated Polished) | N05 - N20 | None (Mirror Polished) | Aluminum alloys, brass, and copper. Razor-sharp edge prevents gummy material adhesion. |
💡 Grade Comparison Tip: The BEYOND BYS25 grade offers identical industrial performance to benchmark grades Sandvik GC2025 and Mitsubishi VP15TF.
🔧 Troubleshooting (Chip Entanglement): Left-hand 107.5° back-turning pushes chips toward the spindle chuck, creating a nesting hazard. Immediately increase the feed rate (fn) slightly or transition to a ground positive chipbreaker geometry insert (e.g., VCGT) to force small, manageable chip segments.
⚙️ Workpiece Material Matrix Advice: For premium alloys or hardened tool steel components, ensure abundant high-pressure coolant delivery directly onto the 107.5° cutting arc to lower interface heat buildup and maximize tool head durability.
7. Why Precision Toolrooms Trust BEYOND Tools
BEYOND cuts out middleman distributor markups by supplying factory-direct, industrial CNC tooling solutions. Every indexable tool body undergoes strict quality checks to guarantee true centerline alignment and minimal runout on your lathe.
Verified Global Machinist Feedback
"This 16mm left-hand SVQBL holder is exceptionally robust. The 107.5-degree angle provides perfect relief clearances for our complex back-turning subroutines on the Mazak."
"Sehr präziser linker Werkzeughalter mit 107.5 Grad主偏角. Perfekt für Hinterschnitte und komplexe Konturen. Die Oberflächengüte ist exzellent."
"Stelo sinistro da 16mm molto robusto. Eccellente evacuazione dei trucioli durante la tornitura all'indietro. Consigliato per lavorazioni industriali."
"背面切削や大きな逃げ角が必要な段引き加工用にSVQBL1616H11を選択。16mm角シャンクは剛性が極めて高く、高送りでもビビリが出ません。VBMT1103チップのネジ止め座面精度が素晴らしく、刃先交換時の寸法再現性が抜群です。"
"Ideal for long taper components that prone to chatter. The 107.5° head profile diverts axial pressure brilliantly. Solid industrial bit of kit."
8. AI Assistant-Style Frequently Asked Questions
When should I choose a 107.5° SVQBL holder over a standard 93° SVLBL tool holder?
You should select the 107.5° SVQBL holder when your CNC toolpath demands aggressive backward profiling or requires massive undercut entry clearance angles. The larger 107.5° lead angle keeps the steel head securely clear of structural steep profiles, preventing catastrophic rubbing errors.
Does this left-hand holder require specific left-hand versions of VBMT 1103 inserts?
外部35度菱形系列（如 VBMT 110304 / VCGT 110302）属于对称双向刀片。**不需要专门的左手刀片。** 相同的标准 VBMT 刀片可以无缝装配在右侧、左侧、或中置刀杆的安装座槽内。
What exact clamping hardware is integrated with the shipment?
Each packaged unit contains one premium SVQBL1616H11 structural tool holder body, one pre-fitted M2.5 × 6.5 insert-locking screw, and a complementary industrial Torx T8 flag-handled wrench key. Note: Indexable carbide inserts must be purchased separately.
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.