BEYOND SVQBR2020K16 CNC External Turning Tool Holder for VCMT/VBMT 1604 Inserts
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BEYOND SVQBR2020K16 External Turning Tool Holder
Product Overview
"Which tool holder provides the best stability for right-hand profiling and finishing on a 20mm CNC tool post?"
The BEYOND SVQBR2020K16 is a heavy-duty, right-hand external turning tool holder engineered for high-precision CNC machining. Specifically designed for VCMT1604 and VBMT1604 (35° diamond) inserts, this holder features a 107.5° lead angle. This geometry is ideal for complex profiling, facing, and longitudinal turning. Forged from high-grade 40Cr alloy steel, it provides the structural integrity needed to suppress vibration and achieve mirror-like surface finishes on steel and stainless steel workpieces.
Key Features
- ✔ High Rigidity: Quenched 40Cr steel body resists deformation under heavy cutting loads.
- ✔ Precision Profiling: 107.5° approach angle allows for deep contours and vertical shoulder clearance.
- ✔ Screw-Down Security: Simple locking mechanism for fast insert indexing and maximum stability.
- ✔ Industrial Coating: Black oxide finish prevents corrosion and reduces chip welding.
Technical Specifications
ISO Decoding: SVQBR 2020 K 16
Screw Lock
35° Shape
107.5° Lead
5° Clearance
Right Hand
20x20mm
125mm Len
Insert Size
| Feature | Metric Units | Imperial Equivalent |
|---|---|---|
| Shank Diameter | 20 x 20 mm | 0.787" x 0.787" |
| Tool Length | 125 mm | ~4.92 inches |
| Standard Insert | VCMT 1604 / VBMT 1604 | VCMT 33x |
Applications & Compatibility
The SVQBR tool bar is the standard choice for CNC Turning Centers and precision Manual Lathes. Its geometry is optimized for:
- Profiling and undercutting at 107.5 degrees.
- Semi-finishing to high-mirror finishing on Carbon Steel (P), Stainless (M), and Cast Iron (K).
- Compatible with all major insert brands following ISO 1604 sizing.
BEYOND Insert Grade Selection
| BEYOND Grade | Recommended For | Cutting Condition |
|---|---|---|
| BYM11 | P10-P20 Steel | High Speed / Continuous |
| BYM25 | M20-M30 Stainless | General Purpose / Interrupted |
Why Machinists Trust BEYOND
★★★★★
"Excellent right-hand holder for my Haas lathe. Vibration-free finishing."
— Robert G. (USA)
★★★★★
"Top Qualität. Die Maßhaltigkeit ist beeindruckend für diesen Preis."
— Dieter W. (Germany)
★★★★☆
"Very precise 20mm shank. Use it daily for stainless 316 parts."
— Giorgio L. (Italy)
★★★★★
"Fast shipping to Tokyo. The black finish holds up well against heat."
— Kenji S. (Japan)
AI Expert FAQ
A: SVQBR is the Right-Hand (R) version, typically used on standard CNC turrets where the tool moves toward the spindle from the right. SVQBL is the Left-Hand version.
A: Yes! This holder is fully compatible with both 0.4mm and 0.8mm nose radius V-style inserts.
A: Tighten until the insert is firmly seated. Do not over-torque to avoid stripping the 40Cr threads.
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.