SRDCN2020K06 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRDCN2020K06 External Turning Toolholder
Precision 20x20mm Neutral Shank for RCMT0602 Round Inserts
Product Overview
"Which 20mm neutral toolholder is best for high-precision profiling and multi-directional contouring with 6mm round inserts?"
The Beyond SRDCN2020K06 is a professional-grade external turning toolholder designed for RCMT0602 round inserts. Its neutral orientation provides maximum flexibility, allowing for symmetrical approach angles and complex profiling from both directions. By utilizing round inserts, this holder excels in heat dissipation and maintains extreme edge strength, making it the ideal choice for finishing complex contours in stainless steel, high-temp alloys, and hardened steels where vibration control is paramount.
Key Features
- ✔ High-Rigidity 42CrMo Alloy Steel: Quenched and tempered to HRC 42-45 for superior vibration damping and durability.
- ✔ Precision Screw Clamping: Optimized pocket design ensures zero insert movement, providing high indexability and accuracy.
- ✔ Industrial Black Oxide Coating: Protects against corrosion and thermal fatigue during continuous high-speed machining.
Technical Specifications
Screw Clamp
Round Shape
Neutral/45°
7° Relief
Neutral 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 | 4.92" |
| Insert Size | RCMT 0602** | Round 1/4" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| P (Steel) | 150 - 260 m/min | 0.10 - 0.30 mm/rev |
| M (Stainless) | 100 - 170 m/min | 0.08 - 0.25 mm/rev |
Required Insert: RCMT 0602** / RCGT 0602**
Optimized for 6mm round inserts to achieve glass-like surface finishes on complex profiles.
View Compatible Inserts →Common Applications
- Shaft & Hydraulic Cylinder Profiling
- Complex Radius & Profile Contouring
- Symmetrical Turning on CNC Lathes
- Finishing of Heat-Resistant Alloys
Compatibility
Designed for CNC turrets with 20mm tool blocks. Standard ISO geometry ensures full compatibility with RCMT 06 series inserts from Beyond, OYYU, and other global tool brands.
Beyond Brand Material Comparison
Superior Alloy Integrity: While entry-level toolholders use basic carbon steel, Beyond utilizes high-alloy 42CrMo steel. Our specialized heat treatment provides 30% higher damping capacity, which is critical for maintaining the precision of the 6mm round insert’s geometric profile during high-speed finishing cycles.
Global Customer Feedback
"Great stability for profiling on my CNC. The 20mm shank is rigid and accurate. Neutral design makes programming simple."
— Robert D., USA"Hervorragende Qualität. Die RCMT06 Platten sitzen perfekt. Sehr gute Standzeit des Halters."
— Dieter W., Germany"Excellent toolholder for precision work. Beyond tools consistently provide top-tier performance at a fair price."
— Marco V., Italy"Beyond toolholders are consistently reliable. Accuracy is comparable to leading Japanese brands."
— Kenji S., JapanFrequently Asked Questions
Can I use RCGT inserts with this holder?
Yes! The SRDCN2020K06 is fully compatible with both RCMT (standard) and RCGT (ground and polished for aluminum/copper) 6mm inserts.
What is the benefit of the Neutral (N) orientation?
Neutral holders allow the tool to machine in both directions symmetrically. This is ideal for complex profiling and facing without needing separate L/R tools.
Is the clamping screw and wrench included?
Yes, every Beyond toolholder is shipped with a high-strength clamping screw and the corresponding Torx wrench.
Industrial Pro Tip: High-Efficiency Profiling
When using the SRDCN2020K06, the round insert allows for significantly higher feed rates because the "chip thinning" effect is maximized on radii. For roughing applications, increase your feed by 15% compared to standard diamond tools while maintaining a stable edge.
Need Help With BEYOND Inserts?
Looking for a BEYOND equivalent, alternative grade, or sample catalog? Our CNC specialists have helped 50+ manufacturers in aerospace, automotive, and medical machining source the right tooling at 30–50% lower cost than OEM prices.
This BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
Technical FAQ & Buying Guide
When choosing CNC cutting tools, check the full model code, dimensions, grade and selected variant before ordering. Do not rely on the product image alone.
For carbide inserts, tool holders, drills and end mills, compare the mounting dimensions, connection type and manufacturer's specifications with your holder or machine. If you are unsure, share your existing part number and machining application with us before ordering.
Check the product listing for the selling unit, pack quantity and included components. If it is unclear whether the price is per piece or per pack, or whether a tool body and inserts are sold separately, contact us before purchasing.
Select cutting speed, feed rate and depth of cut using the relevant manufacturer's recommendations for your tool model, workpiece material, machine conditions and coolant method. The same settings are not suitable for every product or application.
Our automatic quantity discount is 6% off for 2–9 items and 12% off for 10 or more items, based on the total product quantity in the cart. Other offers may not combine with this discount; check the applicable offer conditions.
According to our shipping policy, orders are typically processed and shipped within 1–3 business days after confirmation. Delivery generally takes 5–20 business days, depending on your destination and shipping method. Customs clearance or unforeseen delays may affect delivery times. A tracking number is sent by email after shipment.