BEYOND SVVBN2020K16 External Turning Tool Holder 20mm Shank for VBMT1604
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BEYOND SVVBN2020K16 External Turning Tool Holder
Product Overview
"Which 20mm neutral-hand holder is most effective for 72.5° profiling and multi-directional external turning?"
The BEYOND SVVBN2020K16 is a professional-grade, neutral-hand (N) external turning tool holder featuring a versatile 20x20mm shank. Designed specifically for 35° rhombic VBMT 1604 or VCMT 1604 inserts, it is the industrial benchmark for precision profiling. Its 72.5° lead angle offers optimized clearance for intricate contours, providing high stability and an excellent surface finish in steel, stainless, and alloy machining.
Key Features
- ✔Hardened Alloy Steel: Body quenched to HRC 42-45 for superior rigidity and dampening.
- ✔72.5° Profiling Geometry: Designed for high-clearance facing and contouring.
- ✔Secure S-Type Locking: Reliable screw-down mechanism for rapid insert indexing and stability.
- ✔Anti-Vibration Design: Engineered to reduce chatter during finishing passes at high speeds.
Technical Specifications
| ISO Model | Metric (mm) | Imperial (Inch) |
|---|---|---|
| Shank Size (H x W) | 20 x 20 mm | ~3/4" x 3/4" |
| Overall Length (L) | 125 mm | 4.92" |
| Compatible Insert | VBMT1604 / VCMT1604 | VBMT 33x series |
Recommended Cutting Parameters
| Material | Speed (Vc) m/min | Feed (fn) mm/rev |
| Steel (P) | 140 - 240 | 0.10 - 0.30 |
| Stainless (M) | 90 - 160 | 0.08 - 0.20 |
Model Decoding: SVVBN2020K16
Screw
35° Shape
72.5° Lead
5° Clear.
Neutral
20x20mm
125mm L
Size 16
Compatible Carbide Inserts
This holder is designed for VBMT 1604 and VCMT 1604 inserts. Browse our precision-coated range for maximum performance.
View VBMT 1604 Inserts →Applications & Compatibility
The 20mm shank is the industry standard for medium-sized CNC lathes and turret stations. It excels in longitudinal turning and profiling where a neutral hand provides the versatility to cut in both directions depending on the turret setup. Perfectly compatible with machines from Haas, Mazak, Doosan, DMG Mori, and Okuma.
Verified Machinist Feedback
"Excellent for Profiling"
James K. (USA) - The 20mm shank is very rigid on my Haas ST-10. Neutral hand makes it very versatile.
"Sehr gute Qualität"
Oliver B. (Germany) - Solid fitment for VBMT inserts. Great value for the price compared to big brands.
"Versatile and Durable"
Marco V. (Italy) - Good rust resistance and the center height was dead on. Profiling finish is mirror-like.
"Industrial Standard"
Kenji H. (Japan) - Standard ISO dimensions. Works well for our production line.
Industrial Support FAQ
A: As a neutral (N) hand holder, the tool can be oriented in various ways, but it is primarily used for centered profiling and facing depending on your turret rotation.
A: Yes, every BEYOND holder includes the correct insert screw and Torx wrench in the box.
A: The holder itself is made of high-quality alloy steel. The workpiece compatibility (Steel, Stainless, etc.) depends on the carbide insert grade you choose to install.
Grade Comparison: Pair with BEYOND BY815 for multi-material steel or BYM25 for dedicated stainless steel turning.
Equivalent Models: Sandvik SVVBN-2020K16, Kennametal SVVBN2020K16, Iscar SVVBN-2020-K16.
Troubleshooting: If vibration occurs, check tool overhang (maintain 3x shank height max) and verify center height alignment.
Workpiece Material Matrix: P (Steel) ●●● | M (Stainless) ●●● | K (Cast Iron) ●●○ | N (Non-Ferrous) ●●●
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.