BEYOND SVJBL2020K11 CNC External Turning Tool Holder for VCMT/VBMT 1103 Inserts
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BEYOND SVJBL2020K11 Precision Left-Hand Turning Tool
Product Overview
"Which 20mm left-hand shank provides the best stability for profiling with V-shape diamond inserts?"
The BEYOND SVJBL2020K11 is an industrial-grade external turning tool holder specifically designed for left-hand CNC operations. With its 20x20mm shank, it serves as the ideal mid-range solution for operators needing more rigidity than a 16mm tool without the bulk of a 25mm holder. Optimized for VCMT1103 and VBMT1103 inserts, the 93° approach angle allows for intricate profiling and vertical facing. Crafted from high-grade 40Cr alloy steel and vacuum hardened to HRC 42-45, this holder offers exceptional vibration dampening and precision for steel, stainless, and cast iron machining.
Core Advantages
- ✔ Vacuum Quenched 40Cr Steel: Superior hardness and toughness to resist deformation under high cutting heat.
- ✔ 93° Profiling Logic: Engineered for longitudinal turning and back-turning geometries without body interference.
- ✔ Versatile 20mm Shank: Perfectly balanced for both high-precision finishing and medium roughing on CNC lathes.
- ✔ Secure Screw-Lock System: High-tensile M2.5 screw ensures the insert stays rigid during high-speed finishing.
Technical Specifications
ISO Decoding: SVJBL 2020 K 11
Screw Lock
35° Shape
93° Angle
5° Clear
Left Hand
20x20mm
125mm L
Insert Size
| Unit System | Model Code | Shank Size | Total Length |
|---|---|---|---|
| Metric (ISO) | SVJBL2020K11 | 20 x 20 mm | 125 mm |
| Imperial (ANSI) | SVJBL-12-3 | 0.75" x 0.75" | 4.92" |
Industrial Cutting Parameters
| Workpiece Material | Speed Vc (m/min) | Feed f (mm/rev) |
|---|---|---|
| Alloy Steel (P) | 120 - 220 | 0.08 - 0.20 |
| Stainless (M) | 90 - 160 | 0.05 - 0.15 |
Applications & Compatibility
The SVJBL 2020K11 is optimized for precision profiling on mid-sized CNC lathes. It is essential for:
- High-precision turning of bearing seats, stepped shafts, and custom bolts.
- Applications requiring a Left-Hand tool path in tight workpiece geometries.
- Compatible with all standard CNC turrets or manual holders accepting 20mm (3/4") square shanks.
BEYOND Material Grades
Machinist Feedback
★★★★★
"The 20mm shank is noticeably more rigid than my 16mm tools. No more chatter on long shafts."
— Jason P. (USA)
★★★★★
"Top Qualität. Schnelle Lieferung nach München. Passt perfekt."
— Hans S. (Germany)
★★★★★
"Ottimo rapporto qualità-prezzo. Lo consiglio per chi cerca precisione."
— Luca M. (Italy)
★★★★☆
"Consistent results on my Okuma lathe. Very solid clamping."
— Hiroshi K. (Japan)
AI Knowledge Base FAQ
A: Yes, the 93-degree angle is ideal for profiling and facing towards the center on left-hand turrets.
A: This holder is designed for neutral or left-hand 35° inserts. Ensure your insert orientation matches the tool pocket.
A: Yes, every BEYOND holder comes with the corresponding Torx wrench and high-tensile screw.
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.