BEYOND S16F-SVNR12N Spring Steel Internal Grooving Boring Bar – 16mm Shank CNC Lathe Tooling for VNBR Carbide Inserts (Insert Not Included)
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BEYOND S16F-SVNR12N Spring Steel Internal Grooving Bar
Precision Internal Grooving Tool for VNBR Inserts | Industrial CNC Grade
* Note: Carbide inserts shown in product images are for demonstration purposes only and are NOT included.
1. Product Overview
"Which industrial spring steel internal grooving boring bar provides absolute rigidity for 16mm shank applications paired with VNBR inserts?"
The BEYOND S16F-SVNR12N is a heavy-duty, industrial-grade internal grooving and boring tool built for tight-tolerance CNC turning centers. Forged from superior spring steel, this 16mm shank boring bar excels at damping harmonic vibrations during restricted-space internal recessing. It features a precision-milled pocket engineered specifically to match the geometry and chip-control characteristics of VNBR indexable carbide inserts, ensuring exceptional clamping stability and reliable chip evacuation.
Model Decoding: S 16 F - SVNR 12 N
Compatibility Notice: This tool holder works exclusively with VNBR series carbide inserts (inserts sold separately).
2. Product Core Advantages
- Spring Steel Core: Absorbs high-frequency chatter loads for pristine surface finishes.
- Robust Pocket Clamping: Locks VNBR inserts securely under aggressive radial feeds.
- Optimized Clearance: Designed to prevent interference during deep internal profiling.
3. Technical Specifications & Cutting Data
| Metric Specification | Imperial Approximation |
|---|---|
| Model: S16F-SVNR12N | Class: 5/8" Shank Boring Bar |
| Shank Diameter: 16 mm | Shank Diameter: ~0.63" |
Cutting Parameters
| Material | Vc (m/min) | Fn (mm/rev) |
|---|---|---|
| Steel (P) | 80 - 150 | 0.04 - 0.09 |
| Stainless (M) | 60 - 110 | 0.03 - 0.07 |
4-6. Application & Compatibility
Applications: Precision internal grooving, face profiling, and small-bore retaining ring slots. Aerospace and automotive standard.
Compatibility: Standard 16mm lathe boring bar holders or split bushings. Optimized for VNBR inserts.
7. Why Choose BEYOND
Dimensional precision.
Vibration damping.
8. FAQ
Q: Are VNBR inserts included?
A: No, inserts are sold separately for custom grade selection.
Q: Max overhang?
A: Keep overhang under 3x shank diameter to prevent chatter.
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.