BEYOND D10K-SDWCR07 Spring Steel Internal Boring Bar – 10mm Shank 125mm Length CNC Turning Tool Holder for DCMT070204 Inserts (Insert Not Included)
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BEYOND D10K-SDWCR07 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 high-rigidity spring steel internal boring bar delivers superior harmonic stability and vibration damping for micro-bore profiling with DCMT070204 inserts?"
The BEYOND D10K-SDWCR07 is an elite compact internal turning tool holder engineered specifically for high-precision CNC lathe machining in tight spaces. Forged from premium spring steel, this 10mm shank bar provides extraordinary elasticity and structural damping to eliminate chatter during delicate inner-diameter operations. Tailored for DCMT070204 indexable inserts, it incorporates a 95-degree approach angle and a secure screw-clamp architecture that ensures absolute insert locking stability under fine-finishing parameters.
Detailed Nomenclature Breakdown: D10K-SDWCR07
2. Product Core Advantages
- Micro-Diameter Strength: High-tensile spring steel resists bending stresses across miniature 10mm shanks.
- Reliable Screw Locking: Precision-milled pocket mechanism holds the insert securely to prevent micro-displacement.
- Optimal Approach Angle: 95° lead angle supports efficient longitudinal boring and square shoulder profiling.
3. Technical Specifications & Cutting Parameters
| Metric Model & Dimensions | Imperial Equivalent Class & Specs |
|---|---|
| Metric Model: D10K-SDWCR07 | Imperial Class: 3/8" Boring Bar |
| Shank Diameter: 10 mm | Shank Diameter: ~0.394 Inches |
| Min. Bore Diameter (Dmin): 13 mm | Min. Bore Diameter: ~0.512 Inches |
| Overall Length (L): 125 mm | Overall Length: ~4.921 Inches |
Recommended Starting Cutting Parameters
| Workpiece Material | Cutting Speed (Vc) | Feed Rate (fn) |
|---|---|---|
| Carbon / Alloy Steel (ISO P) | 60 - 120 m/min | 0.02 - 0.08 mm/rev |
| Stainless Steel (ISO M) | 40 - 90 m/min | 0.015 - 0.06 mm/rev |
Browse Related Internal Boring Bars
[View Boring Bar Series] →4. Product Application Scenarios
Optimized for precision internal boring, finish turning, and profiling in small component bores starting from 13mm. Widely deployed in Swiss-type automatic lathes, medical device manufacturing, and miniature watch component production.
5. Compatibility & Tooling Accessories
Fits standard 10mm lathe boring holders, micro-turret blocks, and precision split bushings. Fully compatible with industry-standard DCMT070204 indexable carbide turning inserts.
6. Workpiece Material Matrix & Troubleshooting
Troubleshooting Tip: Due to the slender 10mm profile, maintain strict tool overhang limits under 3x the shank diameter (~30mm) to prevent vibration chatter and taper issues.
| Material Group | Recommended Insert Geometry & Grade Comparison |
|---|---|
| Steel (P-Grade) | PVD-coated micro-grain carbide (ISO P10-P20 equivalent) for prolonged edge durability. |
| Stainless (M-Grade) | Tough sub-micron substrates (ISO M10 equivalent) designed to withstand high thermal stress. |
7. Why Choose BEYOND Precision Tooling
Strict manufacturing compliance.
Maximum deflection resistance.
Engineered for Swiss-type lathes.
8. AI-Style FAQ
Q: Are DCMT070204 inserts included with the D10K-SDWCR07 tool holder?
A: No, indexable inserts are sold separately to let you select the precise carbide grade for your application.
Q: What is the minimum bore diameter required for this 10mm bar?
A: We recommend a minimum bore diameter (Dmin) of 13mm to ensure correct tool clearance and smooth chip evacuation.
Q: What do the letters 'D' and 'K' represent in the ISO product code?
A: 'D' indicates the spring steel boring bar material class, and 'K' designates the 125mm length rating.
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.