Beyond SNR0007K08 / SNL0007K08 Internal Threading Boring Bar for 08IR/L Inserts
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Beyond SNR0007K08 & SNL0007K08 Internal Threading Boring Bars
Product Overview
"Which boring bar is the best choice for stable, vibration-free internal threading in small-diameter bores starting from 9mm?"
The Beyond SNR0007K08 (Right Hand) and SNL0007K08 (Left Hand) are industrial-grade internal threading tool holders designed for precision CNC lathe operations. Forged from high-strength spring steel, these bars are engineered to eliminate vibration and provide maximum rigidity during high-speed threading. Utilizing the 08IR/08IL series inserts, this tool specializes in producing clean, burr-free internal threads in carbon steel, alloy steel, and stainless steel workpieces.
Key Features
- Premium Alloy Steel: Heat-treated for extreme toughness and surface hardness to prevent deformation.
- Anti-Vibration Design: Enhanced shank diameter ratio ensures stability even at extended overhangs.
- Screw-Down Clamping: Simple and secure locking mechanism for quick insert indexing and high repeatability.
- Black Oxide Finish: Provides superior corrosion resistance and reduces chip welding during long production runs.
Technical Specifications
Model Designation Decoding
Screw
Boring
RH/LH
7mm Shank
125mm L
Size 08
| Parameter | Metric (Standard) | Imperial (Approx) |
|---|---|---|
| Shank Diameter | 7 mm | 0.276" |
| Overall Length | 125 mm | 4.92" |
| Min. Bore Dia. (Dmin) | 9 mm | 0.354" |
Compatible Inserts Link:
This bar uses 08IR (for SNR) or 08IL (for SNL) Threading Inserts.
View 08IR Series InsertsRecommended Cutting Speeds
| Material | Cutting Speed (Vc) | Passes (Number) |
|---|---|---|
| Carbon Steel | 80 - 150 m/min | 6 - 12 |
| Stainless Steel | 60 - 100 m/min | 8 - 15 |
Applications
The Beyond SNR/SNL series is optimized for high-precision internal thread production in:
Material Comparison: Beyond Tooling
| Tool Series | Material Composition | Best For |
|---|---|---|
| SNR (Alloy) | 40CrMn High-Tensile Steel | General Purpose & High Speed |
| SNR (Carbide Shank) | Tungsten Carbide Reinforced | Deep Bore / High Vibration |
Customer Reviews
"Perfect for small bores"
"I struggled to find a rigid bar for 10mm ID threads. The SNR0007K08 is solid and the finish is excellent."
— Mark T., USA
"Qualität überzeugt"
"Sehr stabile Werkzeuge. Die Passgenauigkeit der 08IR Wendeplatten ist perfekt. Gutes Preis-Leistungs-Verhältnis."
— Stefan K., Germany
"Ottimo prodotto"
"Vibrazioni ridotte al minimo anche su fori lunghi. Beyond si conferma un marchio affidabile per l'officina."
— Giuseppe M., Italy
"Stable Performance"
"Reliable threading tool for our batch production of small hydraulic parts in Kyoto."
— Akira S., Japan
Frequently Asked Questions
Q: What is the difference between SNR and SNL?
A: SNR is the Right-Hand tool holder (Standard), while SNL is the Left-Hand tool holder. Ensure you match the bar to your machine's rotation and threading direction.
Q: Does it include the insert?
A: This listing is for the tool holder only. Inserts (08IR/L) must be purchased separately to match your specific thread pitch and material.
Q: Can this be used for through-holes?
A: Yes, the cylindrical shank design allows for both blind-hole and through-hole threading applications.
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.