BEYOND SVVCN2020K16 CNC External Turning Tool Holder - 20x20mm Shank
Price shown is a starting point. Contact us for a precise quote based on your requirements.
BEYOND SVVCN2020K16 External Turning Tool Holder
72.5° Lead Angle Neutral Shank for V-Shape Profiling Inserts
Product Overview
"Which neutral tool holder is most stable for 35-degree diamond insert profiling on medium-sized CNC lathes?"
The BEYOND SVVCN2020K16 is an industrial-grade external tool holder designed for the highly versatile VCMT 1604 and VCGT 1604 inserts. Featuring a 72.5° lead angle and a neutral (center) orientation, it allows for balanced cutting forces during intricate profiling and contouring. The 20x20mm shank is forged from high-tensile alloy steel, providing the extreme rigidity required to maintain tight tolerances and eliminate chatter when using the sharp, slender geometry of V-shaped inserts.
Key Features
72.5° Dynamic Lead Angle
Engineered for clearance during deep profiling, allowing the 35° diamond insert to access tight contours without tool-body interference.
40Cr Hardened Alloy
Vacuum-quenched to HRC 42-45. This ensures the insert pocket maintains its precision geometry even under high thermal and mechanical stress.
S-Type Screw Clamping
Specifically designed for V-shaped inserts, providing maximum clamping force to prevent insert "lifting" during back-turning or profiling.
Technical Specifications
| Measurement Type | Metric (ISO) | Imperial (ANSI Equivalent) |
|---|---|---|
| Shank Width/Height | 20 x 20 mm | 0.787" x 0.787" |
| Overall Length | 125 mm | 4.92" |
| Compatible Insert | VCMT/VCGT 1604 | VCMT 331/332 |
Recommended Cutting Parameters:
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| General Steel (P) | 140 - 240 m/min | 0.10 - 0.25 mm/rev |
| Stainless Steel (M) | 100 - 180 m/min | 0.08 - 0.20 mm/rev |
Applications
- Intricate profiling of 35° diamond contours.
- Semi-finishing and finishing of tapered shafts.
- Longitudinal and face turning in a neutral orientation.
- Suitable for Alloy Steel, Stainless, and Cast Iron.
Compatibility
Fits 20mm CNC turret holders and traditional lathe tool posts. Specifically optimized for BEYOND VCMT/VCGT 1604 inserts and industry-standard equivalents from Sandvik, Kennametal, and Kyocera.
Global Machinist Reviews
"Profiling king"
Thomas R., USA
Great clearance for deep profiles. The 20mm shank is solid and the VCMT16 fits perfectly. Highly recommend.
"Exzellentes Preis-Leistungs-Verhältnis"
Markus W., Germany
Very fast shipping to Munich. The quality of the 40Cr steel is comparable to much more expensive brands.
"Buon Prodotto"
Giovanni B., Italy
Used for stainless profiling. Very stable neutral holder. Seat is very accurate.
Expert Tooling FAQ
Q: Why choose the SVVCN over a right-hand (SVJCR) holder?
A: The neutral SVVCN is better for balanced profiling and when you need to switch between left and right cutting directions on certain CNC paths without changing tools.
Q: Is this holder suitable for VCGT polished inserts for aluminum?
A: Absolutely. The pocket precision of the SVVCN2020K16 is designed to hold both standard VCMT and high-precision VCGT aluminum inserts securely.
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.