S12M-SDJCR07 Precision Internal boring bar lathe holder for CNC Lathes 93° cutting edge angle
Price shown is a starting point. Contact us for a precise quote based on your requirements.
Overview
The S12M-SDJCR07 Internal Boring Bar Tool Holder is engineered for precision and durability in CNC lathe operations. Featuring a 93° cutting edge angle and a 7° relief angle, this tool holder ensures high accuracy and smooth internal machining. Made from robust alloy steel, it offers exceptional performance and longevity. With a 12mm handle diameter and a total length of 150mm, it provides excellent stability and control. Compatible with a range of DCMT carbide inserts, this tool holder is ideal for professional machinists looking to enhance their CNC machining efficiency.
Key Features
- Cutting Edge Angle: 93°
- Relief Angle: 7°
- Material: Alloy Steel
- Handle Diameter: 12mm
- Total Length: 150mm
- Blade Length: 7mm
- Compatible Inserts: DCMT070202, DCM070204, DCMT070208, DCMT2(1.5)0, DCMT2(1.5)1, DCMT2(1.5)2
- Includes: M2.5*6 Screws, T8 Wrench
S12M-SDJCR07 Precision Internal Boring Bar Tool Holder for CNC Lathes S12M SDJCR07 engine boring bar
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High-Precision Design for Superior Internal Machining
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Robust Alloy Steel Construction for Long-Term Durability
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Versatile Compatibility with Multiple Carbide Inserts
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Accurate Cutting with 93° Edge Angle and 7° Relief
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Stable and Reliable with 12mm Handle Diameter and 150mm Length
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Effortless Tool Changes with S-Type Screw System
5-point description
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Precision Engineering: Features a 93° cutting edge angle and 7° relief for highly accurate internal machining.
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Durable Construction: Crafted from robust alloy steel for long-lasting performance and resistance to wear.
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Versatile Compatibility: Supports various carbide inserts including DCMT and DCM types for flexible applications.
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Stable Operation: Offers a 12mm handle diameter and 150mm length for superior control and stability during use.
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Efficient Tool Changes: Equipped with an S-type screw system for quick and easy adjustments.
Applications:
Ideal for use in CNC machine tools and lathes, this boring bar tool holder is perfect for internal turning and boring operations, providing precision and reliability.
Advantages:
- Enhanced Accuracy: The 93° edge angle and 7° relief deliver precise internal machining.
- Long-Lasting Performance: Robust alloy steel construction ensures durability under heavy use.
- Flexible Insert Compatibility: Accommodates multiple carbide inserts for various machining needs.
- Improved Stability: The 12mm handle and 150mm length provide excellent support during operations.
- Quick Adjustments: The S-type screw system allows for fast and easy tool changes.
Why Choose the S12M-SDJCR07? Choose the S12M-SDJCR07 for its superior precision, durability, and flexibility. Its high-quality construction and design features make it an essential tool for achieving high-performance results in CNC machining, ensuring you can handle demanding internal boring tasks with ease and reliability.
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.