BEYOND D12M-SDZCR07 Spring Steel Internal Boring Bar – 12mm Shank 150mm Length CNC Turning Tool Holder for DCMT070204 Inserts (Insert Not Included)
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BEYOND D12M-SDZCR07 Spring Steel Internal Boring Bar
Precision Internal Turning & Boring Tool Holder for DCMT070204 Inserts | Industrial CNC Grade System
* Note: Indexable turning inserts shown in product images are for demonstration purposes only and are NOT included.
1. Product Overview
"Which industrial spring steel internal boring bar delivers exceptional vibration damping for high-precision turning with DCMT070204 inserts?"
The BEYOND D12M-SDZCR07 is a high-rigidity internal turning tool holder designed for demanding CNC lathe operations. Fabricated from high-elasticity spring steel, this bar is specifically optimized to suppress chatter and tool deflection in deep-bore internal turning applications. With a 12mm shank diameter and 150mm total length, it provides the structural stability required for high-accuracy profiling. The precision-engineered insert seat ensures perfect clamping stability for DCMT070204 indexable inserts, facilitating optimal chip flow and superior surface finish.
Detailed Nomenclature Breakdown: D12M-SDZCR07
2. Product Core Advantages
- Harmonic Dampening: High-density spring steel core ensures stable cutting performance and vibration control.
- Precision Stability: Robust screw-lock mechanism ensures consistent insert seating and repeatability.
- Geometry Optimization: 95° lead angle is perfectly tuned for combined boring and shoulder-facing tasks.
3. Technical Specifications & Cutting Parameters
| Metric Model & Dimensions | Imperial Equivalent Class & Specs |
|---|---|
| Metric Model: D12M-SDZCR07 | Imperial Class: 1/2" Boring Bar |
| Shank Diameter: 12 mm | Shank Diameter: ~0.472 Inches |
| Min. Bore Diameter (Dmin): 16 mm | Min. Bore Diameter: ~0.630 Inches |
| Overall Length (L): 150 mm | Overall Length: ~5.905 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 70 - 140 m/min | 0.04 - 0.12 mm/rev |
| Stainless Steel (ISO M) | 50 - 110 m/min | 0.03 - 0.10 mm/rev |
Browse Related Internal Boring Bars
[View Boring Bar Series] →4. Product Application Scenarios
Expertly optimized for high-precision internal machining, profiling, and shoulder-boring tasks in bore diameters starting from 16mm. Ideal for CNC lathe operations, aerospace mechanical sleeves, and general engineering components.
5. Compatibility & Tooling Accessories
Compatible with standard 12mm lathe boring bar holders and reduction sleeves. Designed for seamless integration with industry-standard DCMT070204 indexable carbide turning inserts.
6. Workpiece Material Matrix & Troubleshooting
Troubleshooting Tip: To minimize surface vibration and maximize bore roundness, ensure tool overhang does not exceed 3.5x the shank diameter (~42mm).
| Material Group | Recommended Insert Geometry & Grade Comparison |
|---|---|
| Steel (P-Grade) | Multi-layered coated carbide grades for general steel (ISO P15-P25 equivalent). |
| Stainless (M-Grade) | Tough carbide matrix engineered for work hardening alloys (ISO M10-M20 equivalent). |
7. Why Choose BEYOND Precision Tooling
Certified industrial production.
Enhanced vibrational stability.
Engineered for high-end CNC.
8. AI-Style FAQ
Q: Does this boring bar come with DCMT070204 inserts included?
A: No, indexable inserts are sold separately to ensure you can select the specific carbide grade suited to your workpiece material.
Q: What is the minimum bore diameter for the D12M-SDZCR07?
A: We recommend a minimum bore diameter (Dmin) of 16mm for optimal tool clearance and chip evacuation.
Q: What do the letters 'D' and 'M' in the model nomenclature signify?
A: 'D' indicates the spring steel boring bar series, and 'M' represents the 150mm 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.