BEYOND SRACR1616H10 External Turning Tool Holder, RCMT1003 Insert
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SRACR1616H10 External Turning Toolholder
Precision 16x16mm Right-Hand Shank for RCMT1003 Round Inserts
Product Overview
"Which 16mm right-hand toolholder is best for achieving high-rigidity profiling and smooth radius contouring using 10mm round inserts?"
The Beyond SRACR1616H10 is a specialized external turning toolholder optimized for RCMT1003 round inserts. In precision machining, round (R-type) geometry is the gold standard for profiling because it lacks a fragile tip, distributing cutting forces and heat across a circular edge. This 16x16mm shank model is ideal for compact CNC lathes or Swiss-type machines where space is at a premium but structural integrity cannot be compromised. It is engineered to provide superior vibration damping, ensuring mirror-like surface finishes on steel, stainless, and tough alloy workpieces.
Key Features
- ✔ Quenched 42CrMo Alloy Steel: Precision forged and heat-treated to HRC 42-45 for extreme toughness and anti-deformation.
- ✔ S-Type Screw Clamping: A streamlined head design ensures maximum chip clearance while providing a rock-solid seat for the insert.
- ✔ Vibration Damping Tech: Beyond's unique material treatment absorbs harmonics, extending the life of your carbide inserts by up to 20%.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Right Hand
16x16mm
100mm Len
RCMT10
| ISO Parameter | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 16 x 16 mm | 0.629" x 0.629" |
| Total Length | 100 mm | 3.93" |
| Insert Size | RCMT 1003** | Round 3/8" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 150 - 280 m/min | 0.15 - 0.45 mm/rev |
| Stainless Steel (M) | 110 - 180 m/min | 0.12 - 0.35 mm/rev |
Required Insert: RCMT 1003** / RCGT 1003**
Optimized for 10mm round inserts for precision profiling applications.
Shop Compatible Inserts →Primary Applications
- High-Accuracy Radius Profiling
- Complex Contouring on CNC Lathes
- Finishing Fillets in Automotive Parts
- Medium Roughing in Alloy Steels
Compatibility
Compatible with all CNC tool turrets designed for 16mm (5/8") shanks. Standard ISO geometry ensures full compatibility with RCMT 10 series inserts from Beyond, Sandvik, and Kyocera.
Beyond Brand Material Comparison
Superior Surface Finish: While entry-level toolholders focus only on dimensions, Beyond utilizes 42CrMo steel with controlled quenching. This creates a dense internal grain structure that damps vibrations 30% more effectively than generic C45 steel holders. When using a 10mm round insert, this stability is the difference between micro-chatter and a mirror-finish on your workpiece.
Verified B2B Reviews
"Great stability for a 16mm shank. The RCMT10 insert gives much better clearance for our specific profiling work."
— Robert D., USA"Hervorragende Qualität. Der Plattensitz ist extrem präzise. Schnelle Lieferung nach Deutschland."
— Dieter W., Germany"Ottimo prodotto. La rigidità è superiore rispetto ad altri marchi economici. Consigliato per precisione."
— Marco V., Italy"Consistent performance. Accuracy across batches is reliable for our production line."
— Kenji S., JapanFrequently Asked Questions
Is this compatible with RCGT inserts?
Yes! The SRACR1616H10 is fully compatible with both RCMT (standard) and RCGT (ground/polished for aluminum) 10mm round inserts.
What does the "H" in the code stand for?
The "H" is an ISO code representing the total length of the toolholder, which is 100mm (approximately 3.93 inches).
Does it include the screw and wrench?
Yes, every Beyond toolholder comes with a high-tensile clamping screw and the corresponding Torx wrench.
Material Pro Tip: Round Insert Power
When profiling with the SRACR1616H10, round inserts allow for significantly higher feed rates compared to diamond-shaped inserts. Because the edge is circular, the load is distributed, preventing the tip breakage common in rough profiling cycles.
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.