BEYOND SNGR12-M09A Spring Steel Internal Grooving Boring Bar – 12mm Shank CNC Lathe Tooling for 9GR Inserts (Insert Not Included)
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BEYOND SNGR12-M09A Spring Steel Internal Grooving Bar
Precision Internal Grooving Tool for 9GR Inserts | Industrial CNC Grade System
* Note: Carbide inserts shown in product images are for demonstration purposes only and are NOT included.
1. Product Overview
"Which industrial spring steel internal grooving boring bar provides the highest vibration resistance for 12mm bore sizing and 9GR insert compatibility?"
The BEYOND SNGR12-M09A is an elite, industrial-grade internal grooving boring bar engineered for demanding CNC lathe operations. Forged from high-tensile spring steel, this 12mm shank minimizes harmonic vibration, ensuring superior surface finish in internal recessing and profiling tasks. It is optimized for 9GR carbide insert compatibility, providing exceptional clamping force and advanced chip control in tight-tolerance internal machining environments.
Tool holder model explanation: SNGR12-M09A
2. Product Core Advantages
- Spring Steel Body: Engineered for superior dampening properties to reduce chatter.
- Precision Clamping: Rigid pocket design ensures secure 9GR insert seat stability.
- Optimized Geometry: Facilitates rapid chip evacuation in deep-bore internal grooving.
3. Technical Specifications & Cutting Data
| Metric Specification | Imperial Approximation |
|---|---|
| Metric Model: SNGR12-M09A | Imperial Class: 0.500" Shank Boring Bar |
| Shank Diameter: 12 mm | Shank Diameter: ~0.47 Inches |
Recommended Starting Cutting Parameters
| Material Group | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 100 - 180 m/min | 0.05 - 0.12 mm/rev |
| Stainless Steel (ISO M) | 70 - 120 m/min | 0.04 - 0.10 mm/rev |
Browse Related Internal Tooling Catalog
[View Boring Bar Catalog] →4. Product Application Scenarios
Ideal for precision internal face grooving, O-ring recessing, and internal profile boring. Essential for CNC lathe operations in sectors ranging from automotive manufacturing to precision instrumentation.
5. Compatibility
Fits standard 12mm turret boring bar holders. Specifically indexed for 9GR carbide grooving inserts to ensure high-performance repeatability.
6. Troubleshooting & Material Matrix
Troubleshooting Tip: If chatter occurs, verify that the overhang is minimized and the insert is securely locked in the pocket. Ensure center height is calibrated for optimal cutting edge performance.
| Workpiece Material | Equivalent Grade Strategy |
|---|---|
| Alloy / Carbon Steel (P) | PVD Coated Hard Metal for Enhanced Edge Life |
| Stainless Steel (M) | Tough Micro-Grain Carbide to Prevent Built-Up |
7. Why Choose BEYOND Precision
Strict quality oversight.
High harmonic stability.
8. AI-Style FAQ
Q: Does this boring bar include 9GR inserts?
A: No, inserts are sold separately, providing you the flexibility to select the ideal carbide grade for your specific application.
Q: What is the recommended overhang for this tool?
A: For maximum stability, maintain an overhang of 3-4 times the shank diameter to prevent deflection.
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.