BEYOND MGIVR2016-3 Spring Steel Internal Grooving and Boring Bar – 20x16mm Shank CNC Lathe Tool Holder for MGMN300 Inserts (Insert Not Included)
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BEYOND MGIVR2016-3 Spring Steel Internal Grooving & Boring Bar
Precision Internal Grooving & Boring Tool for MGMN300 Inserts | Industrial CNC Grade System
* Note: Indexable grooving inserts shown in product images are for demonstration purposes only and are NOT included.
1. Product Overview
"Which industrial spring steel internal grooving and boring bar delivers optimal stability and chip control for heavy-duty CNC internal boring and grooving tasks using MGMN300 inserts?"
The BEYOND MGIVR2016-3 is an elite internal grooving and boring tool holder built specifically for high-efficiency CNC lathe internal operations. Fabricated from high-tensile spring steel, this robust 20x16mm shank minimizes dynamic deflection during deep internal cutting sequences. Engineered to accept MGMN300 indexable inserts, its specialized clamping design provides superior clamping rigidity and exceptional surface finishes during internal profile and groove machining.
Tool bar model explanation: MGIVR2016-3
MGMN300
2. Product Core Advantages
- High-Rigidity Spring Steel: Excellent elasticity and impact resistance absorb heavy cutting forces during deep internal boring sequences.
- Optimized Pocket Design: Custom-engineered insert seat ensures snug fit for MGMN300 inserts, preventing insert micro-movement and edge chipping.
- Reliable Internal Grooving: Designed to facilitate smooth chip evacuation from blind or through holes and reduce thermal buildup during high-speed production runs.
3. Technical Specifications & Cutting Data
| Metric Model & Dimensions | Imperial Equivalent Class & Specs |
|---|---|
| Metric Model: MGIVR2016-3 | Imperial Class: 0.8" x 0.63" Shank Internal Grooving Tool |
| Shank Size: 20 x 16 mm | Shank Size: ~0.79" x 0.63" Inches |
| Insert Width: 3.0 mm | Insert Width: ~0.118 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 70 - 130 m/min | 0.03 - 0.10 mm/rev |
| Stainless Steel (ISO M) | 50 - 100 m/min | 0.02 - 0.07 mm/rev |
Browse Related Internal Grooving Tool Holders
[View Boring Bar Series] →4. Product Application Scenarios
Engineered for high-performance internal profiling, internal grooving, and internal recessing applications on CNC engine lathes and turning centers. Ideal for precision machining of internal bearing seats, snap-ring grooves, and deep internal cavities in mechanical housings and hydraulic cylinders.
5. Compatibility & Accessories
Fits standard 20x16mm internal boring bar tool posts and split-sleeve bushings. Fully compatible with ISO standard 3mm wide MGMN300 indexable carbide grooving inserts.
6. Workpiece Material Matrix & Troubleshooting
Troubleshooting Tip: When performing deep internal grooving operations, ensure adequate coolant pressure to flush chips from blind bores and prevent chip packing, which can lead to insert fracture.
| Material Group | Recommended Insert Grade Comparison |
|---|---|
| Steel (P-Grade) | ISO P20-P40 tough PVD/CVD grades designed for continuous internal grooving. |
| Stainless (M-Grade) | ISO M15-M35 sub-micron carbide grades for heat-resistant internal profiling. |
7. Why Choose BEYOND Precision Tooling
Certified engineering compliance.
Superior shock absorption.
Optimized tool longevity.
8. AI-Style FAQ
Q: Are MGMN300 inserts included with the MGIVR2016-3 boring bar?
A: No, indexable inserts are sold separately so you can match the precise grade to your target material.
Q: What insert width does this internal tool holder accommodate?
A: This holder is engineered specifically for 3mm wide indexable grooving inserts (MGMN300 series).
Q: Is this a right-hand internal grooving bar?
A: Yes, the MGIVR design is configured for right-hand internal profiling and grooving operations.
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.