SRGCR2525M16 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRDCN2525M16 External Turning Toolholder
Precision 25x25mm Square Shank for Round RCMT1606 Inserts
Product Overview
"Which toolholder is most stable for heavy-duty profiling and radius turning with round inserts?"
The Beyond SRDCN2525M16 is a high-performance external turning toolholder specifically engineered for RCMT1606 (round) inserts. Unlike traditional diamond-shaped holders, the centered round insert geometry of the SRDCN series provides the strongest cutting edge possible. This design excels in heavy-duty roughing and complex profiling where multidirectional cutting forces are present, ensuring exceptional tool life and surface finish in steel, stainless steel, and high-temp alloys.
Key Features
- ✔ Symmetrical Neutral Design: The centered insert allows for versatile profiling and multi-directional turning.
- ✔ High Impact Resistance: Optimized for heavy-duty roughing where vibration damping is critical.
- ✔ Lever-Lock/Screw Security: Ensures the RCMT round insert remains stationary under extreme radial loads.
Technical Specifications
Screw Clamp
Round Shape
Neutral (0°)
7° Relief
Straight
25x25mm
150mm Len
RCMT16
| Technical Data | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 25 x 25 mm | 0.984" x 0.984" |
| Total Length (L) | 150 mm | 5.905" |
| Insert Style | RCMT 1606** | Round 5/8" |
Recommended Cutting Parameters
| Material Group | Cutting Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Steel (P) | 140 - 230 m/min | 0.20 - 0.55 mm/rev |
| Stainless (M) | 110 - 170 m/min | 0.15 - 0.40 mm/rev |
Required Insert: RCMT 1606** / RCGT 1606**
Optimized for round carbide inserts to handle heavy profiling.
View RCMT1606 Inserts →Primary Applications
- Roughing of Forged Components
- Large Radius Profiling
- Turbine Blade & Aero-engine Parts
- Heavy-duty Roll Turning
Equipment Compatibility
Designed for any CNC Lathe Turret with a 25mm tool block. Standardized ISO geometry allows seamless replacement of Sandvik, Iscar, or Kennametal toolholders using RCMT 16 series inserts.
Beyond Grade Comparison
Steel Alloy Body: Our toolholders are forged from ultra-high-tensile steel, providing 20% more vibration absorption than standard 40Cr toolholders. This translates to better surface finishes and extended insert life.
Why Machinists Choose Beyond
"The SRDCN centered design is perfect for the profiling work we do on aero-parts. Rigidity is top-notch."
— David W., USA"Excellent holder for RCMT inserts. Switched from a premium brand and the performance is identical at half the price."
— Klaus B., Germany"Molto robusto. The finish on stainless steel with RCMT16 is fantastic."
— Paolo R., Italy"Highly precise. 25mm shank fits perfectly in our Mazak turrets."
— Kenji M., JapanFrequently Asked Questions
Can I use RCGT inserts for aluminum with this holder?
Yes! The SRDCN2525M16 is compatible with both RCMT (standard) and RCGT (ground/polished for aluminum) 16mm round inserts.
Is this toolholder Right-Hand or Left-Hand?
The SRDCN series is a Neutral (Centered) toolholder, allowing it to be used for profiling in both directions depending on your CNC program.
What is the benefit of a round insert over a diamond shape?
Round inserts have the strongest cutting edge and superior heat dissipation, making them the best choice for roughing forged surfaces or materials with variable hardness.
Material Pro Tip: Feed Rates with Round Inserts
Unlike diamond inserts, the chip thickness with a round insert (RCMT) changes based on the depth of cut. When using the SRDCN2525M16 for shallow profiling, you can significantly increase your feed rate (mm/rev) to maintain optimal chip load and prevent work hardening of the workpiece material.
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.