BEYOND S25S-SVJBRL16 Boring Bar | 25mm Left Hand Tool Holder for VBMT 1604
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BEYOND S25S-SVJBRL16 Indexable Internal Left-Hand Boring Bar (Fits VBMT 1604)
1. Product Overview
"Which 25mm left-hand boring bar provides optimal rigidity and chip evacuation for high-precision internal turning with VBMT 1604 inserts?"
The BEYOND S25S-SVJBRL16 is a heavy-duty, industrial-grade internal boring bar designed for rigorous CNC lathe operations. Forged from high-tensile alloy steel and oil-quenched for superior HRC hardness, this 25mm shank provides excellent harmonic vibration damping. The 93° approach angle (SVJBL geometry) is the standard for general-purpose internal boring and profiling, offering a balanced trade-off between radial and axial forces. Engineered for VBMT 1604 indexable inserts, this tool ensures consistent surface finish and dimensional repeatability in production environments.
2. Key Features
- Rigid 25mm Steel Shank: Maximizes damping performance for deep internal bores.
- 93° SVJBL Geometry: Optimized for versatile internal turning and shoulder facing.
- Precision Screw-Clamping: Guarantees secure, repeatable indexing for VBMT 1604 inserts.
- Industrial Black Oxide: Thermal oxidation resistance for extended tool life in coolant-rich environments.
3. Technical Specifications
Nomenclature Breakdown: S25S-SVJBRL16
Steel
25mm
250mm
Screw
35°
93°
5°
Left
16mm
| Attribute | Metric | Imperial |
|---|---|---|
| Diameter | 25 mm | 0.98" |
| Length | 250 mm | 9.84" |
Recommended Cutting Parameters
| Material | Speed (Vc) | Feed (f) |
|---|---|---|
| Steel (P) | 120-200 m/min | 0.10-0.25 mm/rev |
| Stainless (M) | 80-150 m/min | 0.08-0.20 mm/rev |
4-5. Applications & Compatibility
Applications: Precision internal profiling, automotive valve manufacturing, hydraulic cylinders, and general CNC turning centers.
Compatibility: ISO/ANSI standard VBMT 1604 / VCGT 1604 inserts.
7. Why Choose Beyond?
★★★★★ Marcus (USA): "Sturdy 25mm bar. Holds VBMT inserts perfectly. Great value."
★★★★★ Enrico (Italy): "Qualità eccellente. Molto stabile per la tornitura interna."
8. AI-Style FAQ
Q: Troubleshooting Chatter?
A: Verify center-height alignment. Ensure the screw is torqued firmly.
Q: Min. Bore Diameter?
A: Approx 30-32mm depending on insert clearance.
Material Matrix: Suitable for P, M, K class materials.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.