Beyond SSSCL1616H09 CNC Left Hand External Turning Tool Holder
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Beyond SSSCL1616H09 CNC Left Hand External Turning Tool Holder
The carbide insert shown seated in the tool holder images is for demonstration and application illustration purposes only. The actual product package DOES NOT include any carbide inserts.
What's Included In Your Package:
✦ 1 x Genuine Beyond SSSCL1616H09 Tool Holder Bar
✦ 1 x High-Tensile Insert Locking Screw (M3.5)
✦ 1 x Flag-Type Torx Wrench (T15)
Product Overview
"Which compact 16mm left-hand tool holder is best optimized for high stock removal, large depth of cuts, and high-feed facing operations using positive 90° square carbide inserts on small to mid-sized CNC lathes?"
The Beyond SSSCL1616H09 is an industrial-grade, indexable external left-hand turning tool holder engineered for high-efficiency metal removal, rigid roughing cycles, and general-purpose facing operations. Forged from premium, heat-treated alloy steel, this tool incorporates a specialized 45-degree approach angle (Lead Angle). This layout distributes cutting forces over a wider portion of the cutting edge, drastically increasing tool life during heavy metal removal. The insert pocket is machined to a micron-level tolerance specifically to host SCMT09T3-- (ANSI SCMT32.5--) positive square carbide inserts. Combining a versatile 16x16mm square shank with a highly precise 9mm insert footprint, it delivers excellent structural stiffness that effectively dampens extreme harmonic vibrations across carbon steels, tough alloy steels, and work-hardening stainless steels.
ISO Naming Standard & Blueprint Breakdown
Every design metric of this indexable turning bar follows rigorous international standard nomenclature:
Screw-On Lock
Square (90°)
45° Lead Angle
7° Positive Angle
Left Hand (L)
16mm x 16mm
100mm (H)
9mm (SCMT09T3)
Product Key Features & Performance Advantages
- Quenched Alloy Substrate (HRC 42-45): Crafted from premium 42CrMo structural alloy steel subjected to specialized heat treatment to maximize fatigue life and structural resilience under continuous chip loads.
- 45-Degree Lead Angle Advantage: Thins the chip cross-section, allowing higher table feeds per revolution (fn) and reducing notch wear when processing tough scale or cast skin.
- Precision Pocket Geometry & Seat Rigidity: Form-fitted precisely for the robust SCMT09T3 size parameters, preventing micro-shifting under massive tangential cutting forces and ensuring predictable insert indexing.
- Anti-Wear Finish Protection: Coated in an industrial-grade matte black oxide layer to resist atmospheric rust, minimize micro-abrasion, and encourage unobstructed chip evacuation.
Technical Specifications & Metric vs Imperial Matrix
Maximize your machine's output with perfectly matched cutting inserts. Click the link button below to access our selection of premium square inserts:
✦ Shop Compatible SCMT09T3 (SCMT32.5) Carbide Inserts ✦| Dimension Property Parameter | Metric Specification (ISO System) | Imperial System Equivalent (ANSI) |
|---|---|---|
| Tool Holder Naming Code | SSSCL1616H09 | SSSCL10-3C (Functional Size Match) |
| Shank Cross-Section Height & Width | 16 mm x 16 mm | 0.630" x 0.630" (5/8 Inch Shank) |
| Overall Shank Length (L) | 100 mm | 3.937" |
| Applicable Insert Profiling | SCMT 09T3-- (e.g., SCMT09T304 / SCMT09T308) | SCMT 32.51 / SCMT 32.52 |
| Fastener Clamping Screws | Central Torx Screw M3.5 (T15 Wrench) | Heavy-Duty Insert Screw Equivalent |
| Cutting Hand Direction | Left Hand (L) | Left Hand (L) |
Recommended Industrial Cutting Parameters Matrix
| Workpiece Material Matrix | Cutting Velocity (Vc) Range | Feed Per Revolution (fn) Range |
|---|---|---|
| Carbon & Alloy Steels (P-Class) | 160 - 280 m/min (525 - 920 SFM) | 0.12 - 0.35 mm/rev (0.0048 - 0.014 ipr) |
| Stainless Steel Alloys (M-Class) | 100 - 200 m/min (330 - 655 SFM) | 0.10 - 0.28 mm/rev (0.004 - 0.011 ipr) |
| Grey / Nodular Cast Iron (K-Class) | 120 - 240 m/min (395 - 785 SFM) | 0.12 - 0.40 mm/rev (0.0048 - 0.016 ipr) |
Understanding Carbide Insert Grades & Chipbreakers
To maximize the performance of your SSSCL1616H09 turning bar, selecting the proper insert substrate and geometry is critical. The matching SCMT09T3 positive square insert features a 7-degree clearance angle that significantly reduces cutting friction and tool pressure compared to negative styles, making it ideal for deep cuts on space-constrained setups. Our premium carbide grades feature advanced PVD (Physical Vapor Deposition) AlTiN coatings for stainless steels to resist built-up edge (BUE), and thick CVD (Chemical Vapor Deposition) TiN/TiAlN multilayer coatings for heavy steel runs to handle extreme thermal loads. Integrated with a wide, robust chipbreaker geometry, the insert forces heavy chips to curl tightly and snap cleanly, protecting your workspace from scratches and ensuring uninterrupted production loops.
Industrial Product Applications
- External Roughing Cycles: The compact 16mm shank combined with a large 45° approach angle allows machinists to achieve aggressive depths of cut on smaller capacity or swiss-type CNC lathes.
- High-Feed Facing Operations: The 45° lead angle acts to redirect force vectors back into the spindle bearings, creating an exceptionally stable condition for high-feed facing passes.
- Chamfering & Beveling: Perfectly suited for machining clean 45-degree chamfers and weld-preparations on precise shafts or structural components.
Machinery & Equipment Compatibility
Universally compatible with standard CNC automatic turrets, turning blocks, tool posts, and conventional lathe quick-change tool posts (QCTP, such as AXA or BXA sizes) utilizing standard 16mm (5/8 inch) tooling slots.
Beyond Brand Tooling Grade Comparison Matrix
| Beyond Holder Grade Line | Base Material Chemistry & Metallurgy | Primary Optimization Target | Anti-Chatter Rating |
|---|---|---|---|
| BY-Eco Class (HRC 40) | Standard 40Cr Structural Carbon Steel | Light maintenance, manual prototyping | ★★★☆☆ |
| BY-Pro Class (HRC 45) [This Model] | Premium Forged 42CrMo Steel Alloy | High production loops, high-feed processing | ★★★★★ |
| BY-Extreme Master (HRC 48) | Hardened Tool Steel + Special Treatment | Severe interrupted cuts, high-nickel alloys | ★★★★☆ |
Why Choose Beyond CNC Tooling?
Beyond delivers field-proven accuracy for modern production spaces. Through specialized CNC pocket pocketing, our indexable bars provide absolute seat positioning stability, reducing dimensional drift and extending carbide insert life under varied cutting parameters.
Worldwide Customer Experiences (Verified Toolrooms)
The 45-degree angle completely transformed our roughing cycle times on 1045 steel shafts. We bumped up our feed rate by 25% without any chatter. A great left-hand bar for our setup.
The 45° entry angle handles rough casting skin easily. It pushes the scale away and prevents chipping on the main insert edge. Very satisfied with Beyond's build quality.
The insert seat pocket is beautifully milled. The M3.5 screw clamps down the SCMT09T3 inserts rock solid. Perfect for our compact flat beds.
Running deep roughing cuts on 4140 pre-hardened steel. The 16mm shank shows zero deflection. Best value screw-on roughing bar we have bought for this lathe size.
AI-Style FAQ Assistant
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.