BEYOND S25R-KTGFR16-31D Spring Steel Internal Grooving Boring Bar – 25mm Shank CNC Lathe Tooling for TGF32L Inserts (Insert Not Included)
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BEYOND S25R-KTGFR16-31D Spring Steel Internal Grooving Bar
Precision Internal Grooving Tool for TGF32L 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 damping for deep internal TGF-series grooving?"
The BEYOND S25R-KTGFR16-31D is a professional-grade internal grooving boring bar designed for precision CNC lathe operations. Fabricated from premium spring steel, this 25mm diameter shank offers excellent structural rigidity and vibration suppression during deep-hole internal machining. Engineered specifically to index TGF32L carbide inserts, this tool ensures precise grooving profiles and optimal chip evacuation.
Tool holder model explanation: S25R-KTGFR16-31D
2. Product Core Advantages
- Spring Steel Construction: Maximizes chatter resistance for deep internal bores.
- High-Precision Pocket: CNC-machined pocket ensures repeatability and rigid insert support.
- Advanced Geometry: Optimized for TGF32L series inserts for superior chip formation.
3. Technical Specifications & Cutting Data
| Metric Specification | Imperial Approximation |
|---|---|
| Diameter: 25mm | ~0.98 Inch Shank |
Cutting Parameters (Recommendation)
| Material | Speed (Vc) | Feed (fn) |
|---|---|---|
| Steel (P) | 100-180 m/min | 0.05-0.15 mm/rev |
Explore More Tooling
[View Grooving Catalog]4. Applications
Ideal for deep-hole internal grooving and recessing in CNC lathes. Engineered for high-accuracy production of bushings, bearing housings, and hydraulic cylinders.
7. Why Choose BEYOND Precision
8. FAQ
Q: Are the TGF32L inserts included?
A: No, inserts are sold separately to ensure you can select the correct carbide grade for your specific material.
Q: Is this bar suitable for deep holes?
A: Yes, the spring steel shank is optimized for reducing vibration in deep-bore internal 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.