BEYOND S25S-SVJBR16 Boring Bar | 25mm Right Hand Tool Holder for VBMT 1604
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BEYOND S25S-SVJBR16 Indexable Internal Right-Hand Boring Bar (Fits VBMT 1604)
1. Product Overview
"Which 25mm right-hand boring bar is the best choice for stable internal profiling and high-precision CNC turning using VBMT 1604 carbide inserts?"
The BEYOND S25S-SVJBR16 is a heavy-duty, industrial-grade boring bar engineered for demanding internal turning operations. Featuring a high-rigidity steel shank, this tool is designed to minimize harmonic vibration and chatter in deep-hole applications. The 93° lead angle (SVJBR geometry) is optimized for general internal profiling and facing, while the 7° positive clearance pocket ensures excellent chip control with standard VBMT 1604 rhombic inserts.
2. Key Features
- Rigidity: Solid high-tensile steel construction for chatter-free turning.
- Versatility: 93° approach angle ideal for both longitudinal boring and shoulder facing.
- Precision: Screw-clamping mechanism for superior insert stability and repeatability.
- Durability: Black oxide finish prevents thermal oxidation and corrosion.
3. Technical Specifications
Nomenclature Breakdown: S25S-SVJBR16
Steel
25mm
250mm
Screw
35°
93°
5°
Right
16mm
| Specs | Metric | Imperial |
|---|---|---|
| Diameter | 25mm | 0.98" |
| Length | 250mm | 9.84" |
Need Compatible VBMT 1604 Inserts?
Shop Compatible Inserts Here →4-5. Applications & Compatibility
Ideal for automotive valve body boring, hydraulic cylinders, and general CNC profiling. Fits all standard VBMT 1604 / VCGT 1604 inserts.
7. Why Choose Beyond?
8. AI-Style FAQ
Q: Troubleshooting Chatter?
A: Verify center-height and ensure tool stick-out is kept to a minimum.
Q: Is the insert included?
A: No, this is the tool holder only.
Material Matrix: Suitable for P, M, K class materials.
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.