BEYOND SVJCL1212H11 Left Hand External Turning Tool Holder 12mm for VCMT1103
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BEYOND SVJCL1212H11 External Turning Tool Holder
Product Overview
"Which 12mm left-hand holder is best for high-precision 93° profiling and finish turning on small-diameter stainless steel parts?"
The BEYOND SVJCL1212H11 is a professional-grade, left-hand (LH) external turning tool holder with a 12x12mm shank. Engineered for the 35° rhombic VCMT 1103 or VCGT 1103 carbide inserts, it is the ideal choice for precision profiling where space is limited. The 93° approach angle provides excellent clearance for contouring, making it a staple for Swiss-type lathes and small CNC centers machining steel, stainless steel, and non-ferrous materials.
Key Features
- ✔Quenched Alloy Steel: Body hardness of HRC 42-45 ensures superior rigidity and reduced vibration.
- ✔93° Precision Lead: Designed specifically for profiling and back-turning with zero rubbing.
- ✔Advanced S-Type Clamping: Optimized screw-down mechanism for fast insert indexing and clear chip evacuation.
- ✔Compact Versatility: Ideal for precision medical, aerospace, and electronics hardware manufacturing.
Technical Specifications
| ISO Specification | Metric (mm) | Imperial Equivalent |
|---|---|---|
| Shank Size (H x W) | 12 x 12 mm | ~1/2" x 1/2" |
| Overall Length (L) | 100 mm | 3.94" |
| Compatible Insert | VCMT1103xx | VCGT 22x / VC.. 2.2x |
Pro Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon Steel (P) | 150-250 m/min | 0.05-0.20 mm/rev |
| Stainless Steel (M) | 100-180 m/min | 0.05-0.15 mm/rev |
Model Decoding: SVJCL1212H11
Screw
35° V
93°
7° Cl.
Left
12mm
100mm
Size
Required Inserts
For high-performance profiling, this holder must be paired with VCMT1103 carbide inserts.
Shop Compatible Inserts →Applications & Compatibility
The 12mm shank is specifically optimized for Swiss-style lathes and compact CNC turret stations. It excels in external longitudinal turning and intricate contour profiling of miniature shafts, precision fasteners, and medical components. Fully compatible with machine tool blocks from Citizen, Star, Tsugami, Haas, and Doosan.
Verified Machinist Reviews
"Perfect for Swiss Lathes" - Mark S. (USA)
Excellent fit on my Citizen L20. The 93-degree angle is perfect for back-turning stainless pins.
"Sehr hohe Präzision" - Lukas H. (Germany)
Stable 12mm holder. Very good clamping force on the VCMT insert. No vibration even at high Vc.
"Ottima stabilità" - Pietro V. (Italy)
Robust holder for precision profiling. BEYOND tools offer great industrial value.
"Reliable for production" - Kenji T. (Japan)
Consistently maintains center height accuracy throughout long production runs.
Expert AI FAQ
A: The SVJCL series is optimized for finishing and precision profiling. For heavy roughing, we recommend CNMG or WNMG tool holders.
A: Yes, every BEYOND tool holder includes the necessary Torx screw and wrench for immediate setup.
A: It provides superior clearance on the trailing edge of the insert, preventing rubbing during complex profiling paths.
Grade Tip: Pair with BEYOND BY815 for general steel or BYM25 for stainless steel finishing.
Equivalent Models: Sandvik SVJCL-1212H11, Kennametal SVJCL1212H11, Iscar SVJCL-1212-H11.
Troubleshooting: If tool vibration occurs, check center height alignment and minimize tool overhang to < 3x shank height.
Workpiece Matrix: P (Steel) ●●● | M (Stainless) ●●● | K (Cast Iron) ●●○ | N (Non-Ferrous) ●●●
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.