SRGCR2020K06 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRGCR2020K06 External Turning Toolholder
Professional 20x20mm Right-Hand Shank for RCMT0602 Round Inserts
Product Overview
"Which right-hand toolholder is most efficient for high-stability profiling and large-radius contouring on a 20mm CNC turret?"
The Beyond SRGCR2020K06 is a high-performance external turning toolholder specifically engineered for RCMT0602 round inserts. Round geometry offers the strongest cutting edge in the industry, effectively distributing cutting forces and heat. This makes the SRGCR2020K06 ideal for roughing forged parts and finishing complex profiles where vibration damping and surface integrity are critical. Its 20x20mm shank provides a rigid platform for both continuous and interrupted cutting in steel and alloy materials.
Key Features
- ✔ High-Grade 42CrMo Steel: Quenched and tempered to HRC 42-45 for superior impact resistance.
- ✔ Screw-Down Clamping: Optimized pocket design ensures precision indexability and maximum insert support.
- ✔ Multi-Directional Versatility: Excellent for profiling, facing, and longitudinal turning with a single tool.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Right Hand
20x20mm
125mm Len
RCMT06
| 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 0602** | Round 1/4" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 150 - 280 m/min | 0.15 - 0.45 mm/rev |
| Stainless (M) | 100 - 180 m/min | 0.10 - 0.35 mm/rev |
Required Insert: RCMT 0602** / RCGT 0602**
Optimized for 6mm round inserts for precision finishing and profiling.
View Compatible Inserts →Industrial Applications
- Shaft & Hydraulic Cylinder Profiling
- Complex Radius Contouring
- Turbine Component Machining
- Roughing of Forged Steel Parts
Compatibility
Fits all standard CNC turrets with 20mm tool slots. ISO Standard geometry ensures full compatibility with RCMT 06 series inserts from Beyond and other leading manufacturers.
Beyond Brand Material Comparison
Superior 42CrMo Body: Unlike cheaper toolholders made from standard carbon steel, Beyond uses 42CrMo alloy steel. This provides 30% higher damping capacity and significantly better thermal stability, preserving the accuracy of your CNC turret and extending the life of your carbide inserts during heavy-duty operations.
Customer Field Reviews
"Perfect rigidity for profiling stainless. The 20mm shank fits my HAAS turrets perfectly."
— Robert D., USA"Halter ist sehr präzise gefertigt. Die RCMT-Platten sitzen bombenfest."
— Dieter W., Germany"Superior surface finish compared to diamond inserts for radius work."
— Marco V., Italy"Fast delivery and high quality. Precision fit for my Japanese lathe."
— Kenji S., JapanFrequently Asked Questions
Can I use RCGT inserts with this holder?
Yes! The SRGCR2020K06 is compatible with both RCMT (standard) and RCGT (ground/polished for aluminum) 06mm round inserts.
Is this toolholder Right-Hand or Left-Hand?
The "R" in SRGCR stands for Right-Hand. Please verify your turret configuration before purchase.
Why use a round insert for profiling?
Round inserts provide the strongest edge geometry, preventing chipping and providing superior surface finish during complex radii machining.
Material Pro Tip: High-Feed Profiling
When using the SRGCR2020K06, the actual chip thickness is less than the feed per revolution due to the round geometry. For radius finishing, you can often increase your feed rate by up to 20% compared to diamond tools, reducing cycle time without sacrificing finish.
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.