Beyond SRAPL1616H10 CNC Turning Tool Holder (16x16mm Left-Hand Shank)
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Beyond SRAPL1616H10 Left-Hand Compact CNC Turning Tool Holder
⚠️ PRODUCTION NOTICE: Carbide Inserts Not Included
Please note that all indexable carbide inserts displayed in our tool holder product images are for operational demonstration, pocket seating clarity, and application layout visualization only. The Beyond SRAPL1616H10 package includes solely the hardened left-hand compact tool holder body and a matching assembly wrench; indexable cutting inserts must be ordered separately.
1. Product Overview
The Beyond SRAPL1616H10 is an industrial-grade, left-hand external indexable turning tool holder specifically engineered for space-constrained CNC lathe turrets, Swiss-type turning centers, and conventional benchtop engine lathes. Built with a compact 16x16mm square shank body, this premium tool holder is purpose-designed to eliminate harmonics and provide exceptional structural rigidity when working with 10mm round carbide inserts—specifically the internationally standardized RPMT 10T3 and RPMR 10T3 series. Circular cutting geometries possess an inherently high edge strength because they lack a single weak point location like traditional diamond or triangle inserts. This allows mechanical stresses and thermal shocks to distribute evenly across the cutting radius arc, making it highly resistant to micro-chipping. The 11° positive rake clearance profile significantly reduces cutting forces and allows for smooth chip control when face-roughing, back-profiling structural steels, stainless steel components, and tough castings.
2. Product Key Features
- High-Density Alloy Matrix: Quenched and tempered to exact industrial HRC specifications to absorb structural vibration and withstand deep cuts ($Ap$) despite its smaller envelope size.
- Symmetrical Load Evacuation: The round profile geometry spreads cutting wear across a wider radius arc, extending insert tool life by up to 30% compared to rhombic alternatives.
- Chemical Matte Black Finish: Features an advanced industrial black oxide treatment that resists rust and minimizes thermal chip welding during high-temperature dry machining runs.
- Unobstructed Center-Screw Clamping: Engineered with a low-profile metric flathead screw mechanism that provides absolute clearance for continuous, high-velocity chip flow.
ISO Tool Designation Nomenclature Diagram
Looking for high-performance indexable cutting inserts calibrated for this left-hand shank?
Browse Compatible RPMT 10T3 Inserts Here →3. Technical Specifications & Dimension Conversions
| ISO Specification Parameter | Metric Designation (Standard) | Imperial Cross-Reference Equivalent |
|---|---|---|
| Shank Dimension (H x W) | 16 mm × 16 mm | approx. 5/8" × 5/8" (0.625 × 0.625 inch Shank Size) |
| Overall Tool Length (OAL) | 100 mm | approx. 3.937 inches |
| Compatible Insert Specification | RPMT 10T3 MO / RPMR 10T3 | RPM. 32.5 (ANSI Industry Equivalent Standard) |
| Clamping Screw Hardware | M3.5 × 9.0 mm Screw | M3.5 × 9.0 mm Screw |
| Torx Wrench Drive Interface | T15 Flag Wrench | T15 Flag Wrench |
Recommended Industrial Cutting Parameters
| Workpiece Material Family | Cutting Speed ($Vc$) Range | Optimal Feed Rate ($f$) Range |
|---|---|---|
| P (Low-Carbon / Carbon Steel Alloys) | 120 - 250 m/min (390 - 820 SFM) | 0.08 - 0.28 mm/rev (0.003 - 0.011 in/rev) |
| M (Austenitic & Duplex Stainless Steels) | 80 - 160 m/min (260 - 525 SFM) | 0.06 - 0.20 mm/rev (0.002 - 0.008 in/rev) |
| K (Nodular & Grey Cast Irons) | 100 - 200 m/min (328 - 650 SFM) | 0.10 - 0.30 mm/rev (0.004 - 0.012 in/rev) |
4. Product Application Scenarios
The compact 16mm (5/8") square shank block coupled with precise 10mm circular insert profiles excels across specific small-scale precision industrial turning steps:
- Left-Hand Back Turning & Profiling: Runs smoothly toward the tailstock or handles reverse spindle layout stations on smaller multi-axis turning centers.
- Intricate Concave Contouring: Provides absolute clearance and a clean approach path for machining compact ball joints, small valve rods, and miniature spherical components.
- Light Interrupted Cuts: The robust round insert shape absorbs structural shocks efficiently, avoiding edge micro-chipping during intermittent passes on structural tubes.
5. Machine Tool & Equipment Compatibility
Machined to tight dimensional tolerances to ensure fast drop-in integration into compact machine setups:
- Secures directly into standard 16mm static tool pocket blocks or specialized CNC gang-tool tooling blocks.
- Fits smoothly on small or mid-sized conventional manual engine lathes outfitted with compact square tool posts.
- Fully compatible with standard Quick-Change Tool Post assemblies (such as standard QCTP 100 or 200 series, or AXA tool holder blocks designed for 5/8-inch shanks).
6. Beyond Insert Grade Selection Matrix
Pair your SRAPL1616H10 holder with the appropriate Beyond carbide insert grade substrate to match your raw material stock:
| Beyond Insert Grade | Coating Architecture | Primary Application Profile | ISO Range Class |
|---|---|---|---|
| BY1030 | CVD Thick TiCN + Al2O3 Multi-Layer | Continuous high-speed turning to medium roughing in carbon steel and hard alloy plates. | P15 - P30 |
| BY2015 | Multi-Layered PVD AlTiN Nano-Coating | High thermal resilience for gummy stainless steels (304, 316) and high-temperature superalloys. | M10 - M25 |
| BY4025 | Heavy PVD Ultra-Tough TiAlN Coating | Heavy interruption, rough casting surfaces, and structural low-speed processing environments. | P30 - P45 / M25 - M40 |
7. Operational Troubleshooting Matrix
Problem A: Fine Surface Chatter or Low-Frequency Vibration
Correction: On smaller 16mm setups, ensure the overhang length is as short as possible. Also, ensure the depth of cut ($Ap$) is sufficient to engage the round profile geometry and prevent tool rubbing.
Problem B: Premature Flank Wear or Crater Formations
Correction: Elevated linear velocity causes localized friction cooking. Reduce your surface speed ($Vc$) or migrate to a premium CVD multi-layer co-extrusion grade (BY1030).
Problem C: Insert Indexing Shifts or Pocket Movement
Correction: Check if micro-chips or compressed dust have settled underneath the pocket seat. Clean thoroughly with an air gun and replace the M3.5 clamping screw if it shows thread wear.
8. Global Customer Experiences
"Perfect fit for compact tool blocks" — Thomas D. (United States)
Fits our 5/8" static block beautifully for left-hand back profiling contours on medium alloy pins. Paired with standard RPMT10T3 inserts, it strips stock cleanly with zero deflection. Excellent product from Beyond.
"Sehr gute Stabilität bei kompakter Bauweise" — Manfred K. (Germany)
The 16mm shank design is highly precise. The insert pocket seat holds the 10mm round inserts perfectly securely during deep profiling steps. Highly recommended for small CNC lathe setups.
"Gambo compatto da 16mm, ideale per piccoli pezzi" — Giovanni P. (Italy)
Very nice anti-rust matte finish. Handles light roughing cuts on stainless stock comfortably. Note that indexable carbide inserts are sold separately—holder-only box package.
"小型CNC旋盤に最適、素晴らしい剛性" — Satoshi O. (Japan)
Perfect drop-in fit for our 16mm gang-tool setups. The heat dissipation on the steel holder is excellent during long profiling runs. Exceptional value toolholder from Beyond.
"Flawless results on precision spherical parts" — Craig L. (Australia)
We run this 16mm bar for specialized back facing profiles on mild steel components. The solid shank combined with a round insert clears the path smoothly with no structural chatter or edge chipping.
9. Frequently Asked Questions
Q: What is the exact imperial equivalent size for the SRAPL1616H10 tool holder shank?
A: The metric 16x16mm square shank dimensions correspond directly to a standard 5/8 inch × 5/8 inch mounting standard footprint inside traditional imperial tool posts.
Q: Is this tool holder compatible with both RPMT10T3 and RPMR10T3 insert styles?
A: Yes! The pocket seat accepts all standard 10mm round inserts featuring a 3.97mm thickness ($S1$), including both RPMT 10T3 and RPMR 10T3 industrial designations.
Q: What screws and wrench come inside the standard packaging?
A: It uses a high-tensile metric M3.5 × 9mm flathead Torx screw. One screw is pre-installed in the pocket seat, and a matching T15 flag-style driver wrench is included in the box.
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.