BEYOND SVQBL2020K11 CNC External Turning Tool Holder for VCMT/VBMT 1103 Inserts
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BEYOND SVQBL2020K11 External Turning Tool Holder
Product Overview
"Which 20mm shank tool holder provides the best clearance for intricate left-hand profiling using V-series diamond inserts?"
The BEYOND SVQBL2020K11 is a professional-grade, left-hand external turning bar designed for high-precision CNC operations. Specifically engineered for VCMT1103 and VBMT1103 (35° diamond) inserts, this holder features a 107.5° lead angle. This geometry allows for superior accessibility during profiling, back-turning, and facing operations where a standard 90° tool might collide. Crafted from vacuum-quenched 40Cr alloy steel, it offers the perfect balance of toughness and rigidity to minimize chatter and extend insert life.
Core Performance Features
Industrial Durability
Constructed from 40Cr alloy steel with a HRC42-45 hardness rating, ensuring the shank resists bending and fatigue under heavy industrial loads.
Precision Geometry
The 107.5° approach angle facilitates excellent chip evacuation and allows for machining complex contours with deep relief.
Technical Specifications
ISO Model Decoding: SVQBL 2020 K 11
Screw Lock
35° Shape
107.5° Angle
5° Clearance
Left Hand
20x20mm
125mm Len
Insert Size
| Standard | Model Code | Shank Size | Overall Length |
|---|---|---|---|
| Metric (ISO) | SVQBL2020K11 | 20 x 20 mm | 125 mm |
| Imperial (ANSI) | SVQBL-12-3 | 0.787" x 0.787" | 4.92" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) |
| Carbon Steel | 150 - 250 m/min | 0.05 - 0.20 mm/rev |
| Stainless Steel | 100 - 180 m/min | 0.05 - 0.15 mm/rev |
Applications & Compatibility
Ideal Use Cases:
- Precision external profiling of automotive components.
- Finishing cuts on complex Aerospace shafts.
- Heavy-duty longitudinal turning in job shops.
Machine Compatibility:
- CNC Lathe Centers (Fanuc, Haas, Mazak).
- Conventional Manual Lathes with 20mm tool posts.
- Turret-style automatic lathes.
BEYOND Grade Matrix
BYM11 (PVD Coated): Best for high-speed precision finishing of Steel and Stainless Steel. Excellent wear resistance.
BYM25 (CVD Coated): Optimized for interrupted cuts and general-purpose machining of Stainless and Heat Resistant Alloys.
Global Machinist Reviews
★★★★★
"Excellent rigidity for a 20mm shank. Use it daily for profiling 304 stainless shafts."
— Marcus D. (USA)
★★★★★
"Superb price-to-performance ratio. The 107.5° angle is a lifesaver for our complex parts."
— Klaus H. (Germany)
★★★★★
"Qualità industriale vera. La finitura superficiale è eccellente."
— Roberto T. (Italy)
★★★★☆
"Very stable 20mm bar. Accurate indexing every time."
— Kenji S. (Japan)
AI Assistant FAQ
A: Yes. The SVQBL2020K11 accommodates all ISO 1103-sized V-style inserts, including G-tolerance polished inserts for aluminum.
A: This is the 'L' (Left Hand) version. Use this if your lathe turret/spindle rotation requires a left-hand approach for external turning.
A: Yes, each holder comes with an M2.5 high-tensile locking screw and a matching T8 Torx wrench.
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.