BEYOND D10K-SNGR07 Spring Steel Internal Boring Bar – 10mm Shank 131mm Length CNC Grooving and Threading Tool Holder for 7GR Inserts (Insert Not Included)
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
✓ Global Shipping: Express 3–10 Days | Standard 5–15 Days
✓ Guaranteed Quality: 100% Compatibility | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
BEYOND D10K-SNGR07 Spring Steel Internal Grooving Boring Bar
Precision Internal Grooving & Profiling Tool Holder for 7GR 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 provides absolute rigidity and minimum deflection for ultra-narrow bore applications when paired with 7GR inserts?"
The BEYOND D10K-SNGR07 is an advanced industrial-grade internal grooving and threading boring bar engineered for precision micro-diameter CNC lathe turning. Manufactured from high-elasticity spring steel, this tool holder effectively absorbs harmonic vibrations and prevents chatter in deep, slender internal cavities. Featuring a compact 10mm shank diameter and a 131mm overall length, it delivers exceptional dimensional stability. The precision-machined clamp pocket secures 7GR indexable inserts tightly, guaranteeing flawless positional repeatability and clean groove wall finishes.
Detailed Nomenclature Breakdown: D10K-SNGR07
2. Product Core Advantages
- Harmonic Suppression: Resilient spring steel substrate dampens vibrations during high-speed micro-boring tasks.
- Secure Clamping Interface: Robust screw locking mechanism eliminates insert slippage under severe radial loads.
- Optimized Pocket Configuration: Tailored exclusively for 7GR geometry to foster smooth chip clearance and superior surface texture.
3. Technical Specifications & Cutting Parameters
| Metric Model & Dimensions | Imperial Equivalent Class & Specs |
|---|---|
| Metric Model: D10K-SNGR07 | Imperial Class: 3/8" Shank Grooving Bar |
| Shank Diameter: 10 mm | Shank Diameter: ~0.394 Inches |
| Min. Bore Diameter (Dmin): 12 mm | Min. Bore Diameter: ~0.472 Inches |
| Overall Length (L): 131 mm | Overall Length: ~5.157 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 60 - 120 m/min | 0.015 - 0.04 mm/rev |
| Stainless Steel (ISO M) | 40 - 90 m/min | 0.01 - 0.03 mm/rev |
Browse Related Grooving Bars & Inserts
[View Grooving Bar Series] →4. Product Application Scenarios
Built for high-precision internal grooving, face grooving, and thread-relief machining in tight internal bores starting from 12mm. Indispensable for miniature CNC lathe applications, medical instrument components, and watchmaking hardware.
5. Compatibility & Tooling Accessories
Engineered to mount smoothly in standard 10mm lathe boring bar holders and split reduction sleeves. Fully compatible with industrial standard 7GR series indexable inserts.
6. Workpiece Material Matrix & Troubleshooting
Troubleshooting Tip: Due to the slender 10mm shank geometry, keep total tool overhang strictly under 3x shank diameter (~30mm) to prevent tool deflection and ensure tight tolerance preservation.
| Material Group | Recommended Insert Geometry & Grade Comparison |
|---|---|
| Steel (P-Grade) | Sharp positive rake insert geometry (Equivalent to P10-P20 industrial carbide grades). |
| Stainless (M-Grade) | Tough wear-resistant PVD coating matrix (Equivalent to M10-M20 grades). |
7. Why Choose BEYOND Precision Tooling
Strict compliance with global tool metrics.
Superior harmonic damping for slender profiles.
Engineered for consistent shop performance.
8. AI-Style FAQ
Q: Are 7GR inserts included with this tool holder?
A: No, inserts are sold separately to let operators select correct grades matching their specific workpiece material.
Q: What is the minimum bore diameter required for D10K?
A: The minimum recommended bore diameter (Dmin) is 12mm for proper tool clearance and smooth chip exit.
Q: What do the letters 'D' and 'K' represent in the model designation?
A: 'D' denotes the spring steel boring bar category, and 'K' designates the 131mm length class 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.