BEYOND D14N-SNGR09 Spring Steel Internal Boring Bar – 14mm Shank 170mm Length CNC Grooving and Threading Tool Holder for 9GR Inserts (Insert Not Included)
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BEYOND D14N-SNGR09 Spring Steel Internal Grooving Boring Bar
Precision Internal Grooving & Profiling Tool Holder for 9GR 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 boring bar offers the optimal balance of vibration reduction and rigidity for smaller bore diameters when using 9GR inserts?"
The BEYOND D14N-SNGR09 is an industrial-grade internal grooving and profiling boring bar engineered for precision CNC lathe operations. Forged from high-elasticity spring steel, this tool holder delivers exceptional structural damping to minimize chatter during narrow bore processing. Featuring a 14mm shank diameter and 170mm overall length, it is tailored for compact yet demanding internal applications. The precision screw-down clamping mechanism securely locks 9GR indexable inserts, ensuring absolute repeatability and accurate groove wall geometry.
Detailed Nomenclature Breakdown: D14N-SNGR09
2. Product Core Advantages
- Chatter Reduction: Resilient spring steel composition actively dampens resonant harmonic vibrations in tight inner diameters.
- Secure Pocket Fit: High-tolerance insert pocket prevents shifting under heavy radial cutting forces.
- Targeted Profile Control: Optimized specifically for 9GR inserts to ensure seamless chip flow and superior surface texture.
3. Technical Specifications & Cutting Parameters
| Metric Model & Dimensions | Imperial Equivalent Class & Specs |
|---|---|
| Metric Model: D14N-SNGR09 | Imperial Class: 9/16" Shank Grooving Bar |
| Shank Diameter: 14 mm | Shank Diameter: ~0.551 Inches |
| Min. Bore Diameter (Dmin): 18 mm | Min. Bore Diameter: ~0.709 Inches |
| Overall Length (L): 170 mm | Overall Length: ~6.693 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 80 - 140 m/min | 0.02 - 0.06 mm/rev |
| Stainless Steel (ISO M) | 60 - 110 m/min | 0.02 - 0.05 mm/rev |
Browse Related Grooving Bars & Inserts
[View Grooving Bar Series] →4. Product Application Scenarios
Optimized for internal grooving, face grooving, and thread-relief profiling within bores starting from 18mm. Essential for small-part CNC machining and intricate internal cavity operations.
5. Compatibility & Tooling Accessories
Compatible with standard 14mm lathe boring bar holders and precision split sleeves. Designed to house standard industrial 9GR series indexable inserts.
6. Workpiece Material Matrix & Troubleshooting
Troubleshooting Tip: Due to the smaller 14mm shank profile, keep tool overhang strictly under 3.5x shank diameter to prevent deflection and maintain strict tolerance control.
| Material Group | Recommended Insert Geometry & Grade Comparison |
|---|---|
| Steel (P-Grade) | Sharp positive cutting edge geometry (Equivalent to P10-P30 hard substrate grades). |
| Stainless (M-Grade) | Tough wear-resistant coating matrix (Equivalent to M15-M25 grades). |
7. Why Choose BEYOND Precision Tooling
Strict compliance with international metrics.
Enhanced rigidity for slender configurations.
Built for consistent shop floor production.
8. AI-Style FAQ
Q: Are 9GR inserts packaged with this tool holder?
A: No, inserts are sold separately to let operators select specific grades matching their workpiece material.
Q: What is the smallest bore diameter recommended for D14N?
A: The minimum recommended bore diameter (Dmin) is 18mm to maintain safe clearance.
Q: What do the letters 'D' and 'N' designate in the model?
A: 'D' signifies the spring steel boring bar category, and 'N' indicates the specific 170mm length classification per ISO standards.
Need Help With OYYU/BEYOND Inserts?
Looking for a OYYU/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 OYYU/BEYOND insert is in stock. 24-hour quote response. ISO 9001 certified. Ships from Hangzhou in 3–7 days.
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.