SRGCR2020K08 External Turning Tool Holder for RCMT Inserts – BEYOND
✓ In Stock & Fast Dispatch: Order processing: typically 1–3 business days after confirmation.
✓ Global Shipping: Delivery: generally 5–20 business days, depending on destination and shipping method.
✓ Guaranteed Quality: Check model, dimensions and compatibility before ordering. | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
💰 Bulk savings 2-9 pcs · 6% OFF | 10+ pcs · 12% OFF
SRGCR2020K08 External Turning Toolholder
Precision 20x20mm Right-Hand Shank for RCMT0803 Round Inserts
Product Overview
"Which right-hand toolholder provides the best stability for heavy roughing and high-feed profiling on a 20mm shank CNC turret?"
The Beyond SRGCR2020K08 is an industrial-grade external turning toolholder designed specifically for RCMT0803 round inserts. Unlike traditional diamond-shaped inserts, the round geometry of the RCMT series offers the strongest cutting edge, distributing heat and pressure across a larger radius. This minimizes edge chipping and makes the SRGCR2020K08 the ultimate solution for machining forged parts, complex radii, and multi-directional contouring in steel and stainless steel.
Key Features
- ✔ High-Rigidity 42CrMo Steel: Forged for maximum tensile strength to eliminate vibration during high-load turning.
- ✔ Screw Clamping System: High-precision seat ensures zero insert displacement, allowing for consistent profiling accuracy.
- ✔ Versatile Geometry: The 90° approach angle combined with round inserts provides maximum flexibility for contouring.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Right Hand
20x20mm
125mm Len
RCMT08
| 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" |
| Compatible Insert | RCMT 0803** | Round 5/16" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Steel (P) | 160 - 240 m/min | 0.15 - 0.45 mm/rev |
| Stainless (M) | 110 - 180 m/min | 0.10 - 0.35 mm/rev |
Required Insert: RCMT 0803** / RCGT 0803**
High-performance round carbide inserts are mandatory for optimal profiling performance.
View Compatible Inserts →Common Applications
- Roughing Forged Steel Components
- Complex Radius & Profile Turning
- Turbine Blade & Flange Machining
- Continuous & Interrupted Cutting
Compatibility
Designed for CNC turrets with standard 20mm tool slots. ISO Standard geometry ensures seamless compatibility with RCMT/RCGT 08 series inserts from Beyond or other major brands.
Beyond Brand Material Comparison
High-Performance 42CrMo Body: Unlike budget carbon steel holders, Beyond uses premium 42CrMo alloy steel, quenched and tempered to HRC 42-45. This results in 30% higher fatigue resistance and superior damping capacity, extending your carbide insert life by reducing chatter during radius turning.
Customer Field Reviews
"Great stability on my CNC lathe. Profiling stainless shafts used to be a headache, but this holder with RCMT inserts fixed it."
— Robert D., USA"Präzise gefertigt. Die Schraubklemmung hält den Druck beim Schruppen sehr gut aus."
— Hans K., Germany"Ottima qualità del materiale. La finitura superficiale è eccellente anche ad avanzamenti elevati."
— Marco V., Italy"Very reliable for profiling high-hardness steel. Fast delivery to Tokyo."
— Takashi S., JapanFrequently Asked Questions
Can I use RCGT inserts for aluminum with this holder?
Yes! The SRGCR2020K08 is fully compatible with both RCMT (standard) and RCGT (ground/polished for aluminum) 08mm round inserts.
Is this toolholder Right-Hand or Left-Hand?
The "R" in SRGCR stands for Right-Hand. Please check your turret rotation before purchasing.
Why use a round insert for profiling?
Round inserts have the strongest geometry, preventing edge chipping and providing superior surface finish at high feed rates on radii.
Material Pro Tip: High-Feed Radius Machining
When using the SRGCR2020K08, remember that actual chip thickness is less than the feed per revolution. For radius finishing, you can increase your feed rate by up to 25% compared to conventional tools, significantly reducing cycle times while maintaining a perfect finish.
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.