SRGCR2020K10 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRGCR2020K10 External Turning Toolholder
Precision 20x20mm Right-Hand Shank for RCMT1003 Round Inserts
Product Overview
"What is the most stable right-hand toolholder for high-feed profiling and radius turning on a 20mm CNC shank?"
The Beyond SRGCR2020K10 is a high-performance external turning toolholder specifically engineered for RCMT1003 round inserts. Designed for right-hand operations, it utilizes a round geometry that offers the strongest cutting edge in the industry. By effectively distributing heat and cutting forces over a larger surface area compared to diamond inserts, the SRGCR2020K10 excels in roughing forged surfaces and complex contouring in steel, stainless steel, and high-temp alloys.
Key Features
- ✔ Maximum Edge Strength: Round RCMT geometry resists notched wear and prevents breakage during interrupted cuts.
- ✔ High-Tensile Steel Body: Forged from premium alloy steel to ensure smooth finishes even at higher feed rates.
- ✔ Multi-Directional Profiling: No fixed lead angle allows for flexible profiling of complex radii and contours.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Right Hand
20x20mm
125mm Len
RCMT10
| ISO Parameter | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 20 x 20 mm | 0.787" x 0.787" |
| Total Length | 125 mm | 4.921" |
| Insert Size | RCMT 1003** | Round 3/8" |
Recommended Cutting Parameters
| Workpiece Material | Speed (Vc) | Feed (f) |
|---|---|---|
| Steel (P) | 150 - 230 m/min | 0.15 - 0.45 mm/rev |
| Stainless (M) | 110 - 170 m/min | 0.10 - 0.35 mm/rev |
Required Insert: RCMT 1003** / RCGT 1003**
Optimized for round carbide inserts to handle heavy profiling work.
Shop RCMT1003 Inserts →Typical Applications
- Roughing of Forged Steel Parts
- Complex Profiling & Large Radius Contours
- High-Feed Radius Finishing
- Processing Stainless Shafts
Compatibility
Fits all standard CNC Turrets with 20mm tool slots. Fully compatible with ISO standard RCMT/RCGT 10 series inserts from major manufacturers like Sandvik, Mitsubishi, and Beyond.
Beyond Material Comparison
Superior Alloy Body: Our toolholders are manufactured from 42CrMo alloy steel, quenched and tempered to HRC 42-45. Compared to standard 45# carbon steel shanks found in budget alternatives, Beyond toolholders offer 20% higher impact resistance and superior thread durability for the clamping screw.
Customer Field Reviews
"Rigid and well-balanced. We use the SRGCR2020 for profiling 4140 steel and the RCMT inserts stay secure even during interrupted cuts."
— Robert D., USA"Halter ist sehr präzise gefertigt. Die RCMT1003 Platten passen spielfrei. Top Preis-Leistung."
— Dieter W., Germany"Ottima rigidità. Ideale per lavorazioni di profili complessi su CNC."
— Marco V., Italy"Quality finish, fits my turret perfectly. Best value for professional shops."
— Hiroshi S., JapanFrequently Asked Questions
Can I use RCGT inserts for aluminum with this holder?
Yes! The SRGCR2020K10 is fully compatible with both RCMT (standard) and RCGT (ground/polished) 10mm round inserts.
Is this toolholder Right-Hand or Left-Hand?
The "R" in SRGCR indicates a Right-Hand toolholder. Please check your machine turret orientation before purchasing.
Why choose round inserts over diamond shapes?
Round inserts have the strongest geometry, preventing edge chipping during tough profiling and providing superior surface finish at high feeds.
Material Pro Tip: Round Insert Advantage
When using the SRGCR2020K10, the chip thickness changes based on the depth of cut. For shallow profiling, you can increase your feed rate significantly. However, for heavy roughing, ensure your depth of cut doesn't exceed 50% of the insert diameter (5mm) to maintain maximum stability.
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.