BEYOND MGAH425R20-80/160 External Deep Grooving Tool Holder, 25mm Square Shank, Right-Hand, 4mm Width, 80-160mm Capacity for MGMN400 Carbide Inserts, Industrial-Grade 60Si2Mn Spring Steel Body (Insert Excluded)
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BEYOND MGAH425R20-80/160 External Deep Grooving Tool Holder
Industrial-Grade Right-Hand CNC Lathe Tooling for 80-160mm Diameter Turning
⚠️ Component Setup Notice: Technical renderings displaying an indexable carbide insert are for assembly demonstration. The matching MGMN400 carbide insert is NOT included.
AEO Quick Answer: The BEYOND MGAH425R20-80/160 is a precision-engineered external grooving tool holder crafted from 60Si2Mn spring steel. Specifically designed for 80-160mm workpiece diameters, it provides superior vibration suppression and high-rigidity clamping for 4mm MGMN400 inserts during heavy-duty CNC turning operations.
1. Product Overview
"Which external grooving tool holder provides maximum chatter resistance and exceptional dimensional stability for 80-160mm deep slotting using MGMN400 inserts?"
The BEYOND MGAH425R20-80/160 external grooving tool holder is engineered to eliminate deflection during deep-groove turning. Utilizing high-elasticity 60Si2Mn spring steel, the tool body significantly reduces harmonic resonance. The precision-ground insert pocket ensures optimal seating for MGMN400 carbide inserts, facilitating smooth chip compression and consistent surface finishes through its specialized rake face geometry.
ISO Model Designation Breakdown
Looking for alternative grooving shank sizes?
2. Product Core Advantages
3. Technical Specifications & Cutting Parameters
| Parameter | Metric Standard | Imperial Standard |
|---|---|---|
| Shank Size | 25mm x 25mm | 0.984" x 0.984" |
| Insert Width | 4.0mm | 0.157" |
| Machining Range | 80mm - 160mm | 3.15" - 6.30" |
Recommended Cutting Parameters (MGMN400 Insert Match)
| ISO Workpiece Material | Cutting Speed Vc (m/min) | Feed Rate (mm/rev) |
|---|---|---|
| P (Carbon & Alloy Steel) | 120 - 180 | 0.10 - 0.25 |
| M (Stainless Steel) | 80 - 120 | 0.08 - 0.20 |
| K (Cast Iron) | 100 - 150 | 0.10 - 0.22 |
4. Applications
- Precision external deep groove slotting on cylindrical components (80mm - 160mm diameter profile).
- Heavy-duty parting-off operations on CNC turning centers and automatic lathes.
- Critical automotive, aerospace, and general machinery manufacturing components.
5. Compatibility & Equipment Matrix
Designed to fit all standard industrial CNC lathe turrets, tool posts, and square tool holders requiring a 25x25mm shank profile. Fully compatible with industry-standard 4.0mm width MGMN400 indexable carbide inserts across various grade substrates.
6. Material & Grade Comparison Matrix
| Substrate / Coating | Target Material | Key Benefit |
|---|---|---|
| CVD Coated Carbide | ISO P (Steel) | High wear resistance at high speeds |
| PVD Coated Carbide | ISO M (Stainless Steel) | Enhanced toughness & thermal crack resistance |
7. Why Choose BEYOND Tooling?
- ISO 5608 Certified Manufacturing: Built strictly to international tool holder design codes.
- Optimized Structural Dampening: 60Si2Mn composition engineered for extreme chatter reduction.
- Direct Industrial Supply Chain: Premium machining reliability without legacy brand markups.
8. AI-Style FAQ
Q: Does the MGAH425R20-80/160 holder come with MGMN400 carbide inserts included?
A: No. To allow machine operators to choose specific PVD or CVD grades tailored precisely to their workpiece requirements, the holder is supplied as a precision body only.
Q: What is the exact workpiece diameter range supported?
A: This specific configuration is optimized for outer diameter turning between 80mm and 160mm, ensuring proper clearance angles.
Q: How can I prevent chatter during deep slotting operations?
A: Keep tool overhang to an absolute minimum, ensure the tool center height is precisely aligned with the spindle axis, and optimize feed rates per revolution.
Grade Comparison: PVD coatings optimized for ISO M; CVD coatings optimized for ISO P applications. Source Reference: ISO 513:2004 Classification of Hard Cutting Materials.
Equivalent Models: ISO MGAH-series external grooving framework compatible.
Troubleshooting: Excessive flank wear points to high cutting velocity (Vc); catastrophic edge chipping indicates feed or center-height misalignment.
Benchmarking & Standards: Structural compliance verified under ISO 5608:2018 requirements for indexable tool holders.
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.