BEYOND SRACL1616H08 CNC External Turning Tool Holder - 16x16mm Left Hand
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BEYOND SRACL1616H08 External Turning Tool Holder
Precision Left-Hand Profiling for RCMT 0803 Round Inserts
Product Overview
"Which left-hand tool holder provides the highest stability for heavy profiling and finishing on compact CNC lathes?"
The BEYOND SRACL1616H08 is a professional-grade 16x16mm tool holder optimized for RCMT 0803 round inserts. Designed for left-hand external turning, the round insert geometry offers unparalleled edge strength compared to rhombic shapes. This configuration is the industry standard for complex profiling, radius turning, and heavy metal removal where tool pressure must be distributed evenly. The 16mm shank is perfectly sized for small to mid-sized lathes requiring industrial-strength rigidity.
Key Features
Infinite Edge Rotation
Round inserts (RCMT) allow you to utilize the entire circumference, effectively providing more cutting edges per insert than any other shape.
Industrial 40Cr Alloy Steel
Vacuum-quenched to HRC 42-45, the shank provides superior vibration dampening and resistance to thermal deformation.
Screw-Down Stability
The S-Type clamping system ensures the insert is seated with zero micro-movement, essential for high-precision finishing.
Technical Specifications
| Feature | Metric (ISO) | Imperial (ANSI) |
|---|---|---|
| Shank Size | 16 x 16 mm | 0.63" x 0.63" |
| Overall Length | 100 mm | 3.94" |
| Compatible Insert | RCMT 0803 | RCMT 2.5 |
Recommended Cutting Parameters:
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 160 - 280 m/min | 0.15 - 0.50 mm/rev |
| Stainless Steel (M) | 120 - 200 m/min | 0.12 - 0.40 mm/rev |
Applications
- Heavy roughing of turbine blades and rounded shafts.
- Complex contour profiling in aerospace components.
- Semi-finishing with high stability requirements.
- Optimized for Steel, Stainless, and Heat-Resistant Alloys.
Compatibility
Fits 16mm CNC Turrets and Manual Lathe Tool Posts. Compatible with RCMT 0803MO/MO-P/MO-M series inserts from BEYOND, Sandvik, and Kyocera.
Machinist Verified Reviews
"Profiling Masterpiece"
Robert S., USA
Using this for radius profiling on carbon steel shafts. The left-hand 16mm shank is incredibly rigid for its size.
"Top Tier Stability"
Hans L., Germany
BEYOND holders never disappoint. The insert seat is perfectly ground, zero vibration at high speeds.
"Great Value"
Matteo G., Italy
Excellent quality/price ratio. Ships fast. Holds the RCMT inserts very securely.
Expert Tooling FAQ
Q: Why choose a round insert (RCMT) over a rhombic one?
A: Round inserts provide the strongest cutting edge and allow for variable approach angles, making them significantly better for profiling and heavy roughing where chip load varies.
Q: Is this holder suitable for interrupted cuts?
A: Absolutely. The SRACL1616H08 is forged from alloy steel specifically to handle the shock loads of interrupted cuts without seat deformation.
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.