BEYOND SCACL1616H09 Left-Hand External Turning Tool Holder (90° Lead, 16mm Shank)
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1. Product Overview
"Which 16mm left-hand tool holder is optimized for high-rigidity external 90-degree perpendicular shoulder facing using standard CCMT 09T3 inserts on a CNC lathe turret?"
The BEYOND SCACL1616H09 is an industrial-grade, left-hand external indexable turning tool holder precision-crafted for operations requiring absolute dimensional stability. Engineered from premium, vacuum-heat-treated alloy steel, this compact tool body is tailored to seat standard CCMT 09T3__ (CCMT 32.5_) or CCGT 09T3__ 80-degree rhombic carbide inserts. Featuring a 90-degree approach angle (lead angle), it redirects heavy radial deflection forces into axial forces directed down the spindle axis. This suppresses micro-vibrations across carbon steel, stainless steel, and iron castings, making it ideal for precision step profiling and facing on smaller CNC lathes and multi-axis turning centers.
2. Key Features
- High-Tensile Hardened Alloy Body: Tempered to HRC 42-45 to provide superior structural dampening mass and eliminate chatter lines under heavy depth of cut.
- Precision Pocket Seating Geometry: CNC ground to maintain precise pocket tolerances, securely supporting the 7° clearance angle of CCMT inserts to stop rubbing.
- True 90° Side Cutting Lead Angle: Allows clean left-hand facing and square step profiling from the shoulder down without trailing edge taper or tool body drag.
- Chemical Matte Black Oxide Finish: Advanced chemical skin prevents build-up edge (BUE) formation under intense flood coolant pressures and heavy cutting oils.
3. Technical Specifications & Dimension Matrix
Our tool holders comply with strict global ISO standards, guaranteeing seamless insert interchangeability across major industrial manufacturing brands.
| Technical Parameters | Metric Specifications | Imperial Equivalents / USA Code |
|---|---|---|
| ISO Standard Designation | SCACL1616H09 | SCACL10-3 (Interchangeable Model) |
| Shank Cross-Section (H × W) | 16mm × 16mm | 0.629" × 0.629" (Nominal 5/8 inch square shank) |
| Overall Tool Length (L) | 100 mm | 3.937 inches |
| Cutting Hand Vector | Left Hand (L) | Left Hand (L) |
| Approach / Lead Angle | 90° Cutting Angle | 90° Cutting Angle |
| Compatible Insert Families | CCMT 09T3__ / CCGT 09T3__ | CCMT 3(2.5)__ / CCGT 3(2.5)__ |
| Matched Locking Accessories | M3.5 × 9.0 Screw / T15 Torx Key | M3.5 × 9.0 Screw / T15 Torx Key |
| Workpiece Material Class | Recommended Surface Speed (Vc) | Optimal Feed Rate Range (fn) |
|---|---|---|
| Carbon/Alloy Steel (P-Grade) | 130 - 230 m/min (425 - 755 SFM) | 0.08 - 0.22 mm/rev (0.003 - 0.009 ipr) |
| Stainless Steel Alloys (M-Grade) | 80 - 150 m/min (260 - 490 SFM) | 0.06 - 0.16 mm/rev (0.002 - 0.006 ipr) |
| Cast & Gray Irons (K-Grade) | 110 - 190 m/min (360 - 620 SFM) | 0.10 - 0.25 mm/rev (0.004 - 0.010 ipr) |
4. ISO Model Nomenclature Breakdown
Every letter and number signifies an exact design parameter essential for your CAM library and turret setup:
Click Here to Add Premium Compatible BEYOND CCMT 09T3 Carbide Inserts to Your Order
5. Primary Applications
- 90° Flat Facing: Facing perpendicular shoulders cleanly from left to right.
- Medium-to-Finish Turning: The compact 16mm shank provides excellent control during tight profiling runs.
- Interrupted Cuts: The hardened tool body absorbs light mechanical shock on out-of-round stock.
6. Machine Tool Compatibility
- CNC Lathe Turrets: Slots natively into standard 16mm linear block or static turret pockets.
- AXA Quick-Change Posts: Slides directly into standard AXA or size 100 manual quick-change tool posts (QCTP).
- Swiss-Style Turning Centers: Compact geometry fits sub-spindle turning blocks.
7. Why Choose BEYOND Tooling?
BEYOND specializes in industrial-grade indexable cutting systems. By utilizing advanced thermal treatment and precision grinding, we supply machine shops with tool holders that maintain precise center heights and eliminate sudden pocket failure under heavy workloads.
The 16mm shank matches my turret perfectly. Pocket tolerances are incredibly tight; the CCMT 09T3 insert sits absolutely flat with zero vibration. Outstanding surface finishes on alloy steel.
Sehr solider Stahl. Wir nutzen diesen Halter für die Serienfertigung von Edelstahlteilen. Der Sitz bleibt auch nach vielen Betriebsstunden formstabil. Sehr zu empfehlen!
Acciaio di alta qualità. La vite M3.5 non si spana e blocca l'inserto fermamente. Ottimo per la spallatura retta a 90 gradi.
Unlike cheaper generic brands, the threads on this tool holder don't strip out when torqued down. Ran 300 pieces of medium carbon steel with great consistency.
Accurate 90-degree profile. The black oxide coating resists chip wash and corrosion nicely. Great value for standardizing our production lines.
8. Expert Machining FAQ (AEO Structured Layout)
| ISO Material Matrix | Application Suitability | Recommended Insert Configuration & Practical Troubleshooting Tips |
|---|---|---|
| P Carbon & Alloy Steels | Highly Recommended | Use with medium-duty molded chipbreakers. If long, stringy chips wrap around your 16mm shank, increase your feed rate (fn) or depth of cut to force the chip against the breaker wall and snap it. |
| M Stainless Steel Alloys | Outstanding Performance | Deploy sharp, ground positive-rake geometries to prevent mechanical work-hardening. Direct flood coolant directly at the insert pocket seam to prevent rapid thermal edge degradation. |
| K Cast & Gray Irons | Fully Compatible | Equip honed or flat-top tough carbide base inserts. Regularly inspect the tool flank relief zones for abrasive wear caused by the sandy skin typical of iron castings. |
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.