BEYOND SVJBL2525M16 CNC External Turning Tool Holder for VCMT/VBMT 1604 Inserts
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BEYOND SVJBL2525M16 Precision External Turning Tool
Product Overview
"Which 25mm left-hand tool holder is best for profiling and facing with VCMT1604 inserts on a CNC lathe?"
The BEYOND SVJBL2525M16 is an industrial-standard, left-hand external turning tool holder designed for medium to heavy CNC machining. Built specifically for VCMT1604 and VBMT1604 (35° diamond) inserts, it features a 93° approach angle. This geometry is ideal for longitudinal turning and facing where clearance is required to prevent tool body rubbing. Forged from high-tensile 40Cr alloy steel and vacuum-quenched, this holder offers superior rigidity and vibration resistance, ensuring a mirror-like surface finish in steel, stainless, and cast iron.
Core Advantages
- ✔ Vacuum Quenched 40Cr Steel: Exceptional toughness (HRC 42-45) to resist deformation under high-torque cuts.
- ✔ 93° Profiling Angle: Optimized for versatile contouring and facing without tool interference.
- ✔ Screw-Down Clamping: High-tensile M4.5 screw ensures absolute insert stability.
- ✔ Corrosion Resistant: Industrial black oxide coating for extended tool body lifespan.
Technical Specifications
ISO Decoding: SVJBL 2525 M 16
Screw Lock
35° Shape
93° Angle
5° Clearance
Left Hand
25x25mm
150mm Len
Insert Size
| Standard | Model Code | Shank Size | Length |
|---|---|---|---|
| Metric (ISO) | SVJBL2525M16 | 25 x 25 mm | 150 mm |
| Imperial (ANSI) | SVJBL-16-4 | 1.00" x 1.00" | 5.91" |
Recommended Cutting Parameters
| Workpiece Material | Cutting Speed (m/min) | Feed (mm/rev) |
|---|---|---|
| Carbon Steel (P) | 150 - 250 | 0.10 - 0.30 |
| Stainless (M) | 100 - 180 | 0.08 - 0.20 |
Applications & Compatibility
The SVJBL 25mm shank is the industry standard for Medium-to-Large CNC Lathes. It provides elite performance for:
- Precision profiling of shafts and cylindrical components.
- Facing operations where a clean vertical finish is required.
- Compatible with any machine tool post that accepts a 25mm (1 inch) square shank.
BEYOND Grade Comparison
| Grade | ISO Target | Performance |
|---|---|---|
| BYM11 | Steel (P) | Wear-resistant / High speed |
| BYM25 | Stainless (M) | Tough / General purpose |
Machinist Verified Reviews
★★★★★
"Excellent rigidity for 25mm holder. Holds the VCMT 1604 perfectly."
— Steven B. (USA)
★★★★★
"Top Qualität, wie erwartet von Beyond. Sehr stabil bei rostfreiem Stahl."
— Marcus E. (Germany)
★★★★☆
"Buon prodotto, stabile e preciso. Arrivato velocemente."
— Pietro V. (Italy)
★★★★★
"Great value. The screw clamping is very secure for heavy profiling."
— Kenzo H. (Japan)
AI Assistant FAQ
A: SVJBR is Right-hand; SVJBL is Left-hand. This model is Left-hand.
A: While the 25mm shank is strong, the 35° diamond insert (V-type) is best suited for profiling and finishing. For heavy roughing, CNMG or WNMG holders are recommended.
A: Yes, each holder comes with the high-tensile screw and the matching Torx wrench.
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.