BEYOND MCBNR2525M12 External Turning Tool Holder | M-Type Clamping
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MCBNR2525M12
Professional M-Type External Turning Tool Holder
Brand: BEYOND | Origin: China | Industrial High-Performance Series
⚠️ NOTICE: The tool holder includes all necessary spare parts. Inserts (Blades) are NOT included.
Model Identification Guide
Clamping: Multi-lock
Shape: 80° Diamond
Approach: 75°
Clearance: 0°
Hand: Right Hand
25x25mm Shank
Length: 150mm
Insert: CNMG12
Technical Specification & Series Range
Comprehensive parameter data for the MCBNR / MCBNL series:
| Model (R/L) | Compatible Insert | Shank(hxb) | Shim | Pin | Clamp | Screw | Wrench |
|---|---|---|---|---|---|---|---|
| MCBNR/L 2525M12 | CNMG 1204xx | 25 x 25 | MC1204 | CTM617 | HL1813 | ML0625 | L3.0 |
| MCBNR/L 1616H12 2020K12 / 3232P12 |
CNMG 1204xx | 16x16 - 32x32 | MC1204 | CTM617 | HL1813 | ML0625 | L3.0 |
| MCBNR/L 2525M16 / 3232P16 | CNMG 1606xx | 25x25 / 32x32 | MC1604 | CTM822 | HL2217 | ML0830 | L4.0 |
| MCBNR/L 3232P19 | CNMG 1906xx | 32 x 32 | MC1904 | CTM1025 | HL2724 | ML1035 | L5.0 |
Machining Parameter Recommendations
Steel & Carbon Steel (P)
Cutting Speed (Vc): 160 - 280 m/min
Feed Rate (fz): 0.15 - 0.50 mm/r
Stainless Steel (M)
Cutting Speed (Vc): 120 - 210 m/min
Feed Rate (fz): 0.12 - 0.35 mm/r
Shank Size Comparison (Metric vs. Imperial)
| Metric Model: MCBNR2525M12 (25mm) | Imperial Equivalent: MCBNR 16-4D (1") |
| Metric Model: MCBNR2020K12 (20mm) | Imperial Equivalent: MCBNR 12-4C (3/4") |
| Metric Model: MCBNR3232P12 (32mm) | Imperial Equivalent: MCBNR 20-4E (1-1/4") |
Customer Reviews from Around the Globe
⭐⭐⭐⭐⭐ "The MCBNR2525M12 is extremely robust. I use it for heavy roughing on 1045 steel and the rigidity is impressive." - Markus, Germany
⭐⭐⭐⭐⭐ "BEYOND tool holders are a great value. High precision shims and accessories included. Highly recommended." - Jason, Canada
⭐⭐⭐⭐ "Good tool, arrived fast to UK. The M-type clamping is very secure for interrupted cuts." - Robert, UK
⭐⭐⭐⭐⭐ "Using this on my CNC for facing and longitudinal turning. Finish is excellent." - Liam, Australia
⭐⭐⭐⭐⭐ "Fits my CNMG1204 inserts perfectly. Zero vibration at high feed rates." - S. Watanabe, Japan
Frequently Asked Questions (FAQ)
Q: Is the MCBNR2525M12 suitable for left-hand operations?
A: No, this is a Right-hand tool holder. For left-hand operations, please purchase the MCBNL2525M12.
Q: What inserts should I use with this holder?
A: It is compatible with all standard CNMG1204xx series carbide inserts.
Q: Does it come with a wrench and screw?
A: Yes, all BEYOND holders come fully equipped with a shim, pin, clamp, screw, and the appropriate wrench.
Pro Tips: Clamping System Selection
Keywords: MCBNR2525M12, CNC Turning Bar, External Turning Tool Holder, CNMG Indexable Bar, BEYOND Lathe Tools China, 25mm Machine Tooling.
© BEYOND CNC Tools - Industrial Precision Engineering Solutions.
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.