SRGCL2525M08 External Turning Tool Holder for RCMT Inserts – BEYOND
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SRGCL2525M08 External Turning Toolholder
Professional 25x25mm Left-Hand Shank for RCMT0803 Round Inserts
Product Overview
"Which left-hand toolholder is most effective for high-feed profiling and large radius contouring on a 25mm CNC turret?"
The Beyond SRGCL2525M08 is a high-rigidity external turning toolholder designed for precision RCMT0803 round inserts. Round inserts offer the strongest geometry in turning, as the absence of sharp corners prevents edge chipping and allows for multi-directional cutting. This makes the SRGCL2525M08 superior for roughing forged parts and finishing complex radii where standard diamond inserts (CNMG/DNMG) would struggle with vibration or edge wear.
Key Features
- ✔ 42CrMo Alloy Steel Body: High-tensile strength prevents deformation during heavy radial loads.
- ✔ Advanced Vibration Damping: Engineered for chatter-free machining even at high feed rates.
- ✔ Universal Round Seat: Precision screw-clamping ensures perfect RCMT/RCGT 08 insert indexability.
Technical Specifications
Screw Clamp
Round Shape
90° Approach
7° Relief
Left Hand
25x25mm
150mm Len
RCMT08
| ISO Parameter | Metric (mm) | Imperial (inch) |
|---|---|---|
| Shank Size (H x W) | 25 x 25 mm | 1.00" x 1.00" |
| Total Length | 150 mm | 5.905" |
| Insert Size | RCMT 0803** | Round 5/16" |
Recommended Cutting Parameters
| Material Group | Speed (Vc) | Feed Rate (f) |
|---|---|---|
| Carbon Steel (P) | 150 - 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**
Specifically designed for 8mm round inserts for superior contouring control.
View Compatible Inserts →Industrial Applications
- Shaft & Axis Profiling
- Complex Radii Machining
- Forged Surface Roughing
- Valve & Flange Turning
Compatibility
Fits all standard CNC Lathe turrets with 25mm tool slots. ISO Standard geometry ensures seamless compatibility with RCMT/RCGT 08 series inserts from Beyond and other global brands.
Beyond Material Advantage
Superior Edge Rigidity: Beyond toolholders are crafted from 42CrMo alloy steel, quenched and tempered to HRC 42-45. This offers significantly higher stability than carbon steel competitors, effectively reducing the risk of insert fracturing under heavy roughing loads.
Customer Field Reviews
"Great rigidity for profiling stainless. The 25mm shank fits my turret perfectly."
— Robert D., USA"Halter ist sehr präzise gefertigt. Die RCMT0803 Platten passen ohne Spiel."
— Dieter W., Germany"Superior surface finish compared to diamond inserts for radius work."
— Marco V., Italy"High precision manufacturing. Fits my Japanese lathe perfectly."
— Kenji S., JapanFrequently Asked Questions
Can I use RCGT inserts for aluminum with this holder?
Yes! The SRGCL2525M08 is fully compatible with both RCMT (standard) and RCGT (ground) 08mm round inserts.
Is this toolholder Right-Hand or Left-Hand?
The "L" in SRGCL indicates a Left-Hand configuration. Please verify your turret setup.
Why use a round insert instead of a diamond insert?
Round inserts provide the strongest geometry, preventing edge chipping during tough profiling and allowing for much higher feed rates on radius work.
Material Pro Tip: High-Feed Profiling
When using the SRGCL2525M08, remember that actual chip thickness decreases with shallow depths of cut. This "chip thinning" effect allows you to increase your feed rate (mm/rev) significantly, reducing cycle times without sacrificing tool life.
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.