10pcs CTM513 Spring Steel Center Pin – Sturdy CNC Tool Bar Accessory for Lathe Assembly
✓ In Stock & Fast Dispatch: Ships within 24–48 Hours from China
✓ Global Shipping: Express 3–10 Days | Standard 5–15 Days
✓ Guaranteed Quality: 100% Compatibility | Direct Factory Outlet
✓ Technical Support: Need grade selection help? Contact Engineer
Product parameters:
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Specification : CTM513
- Screw material : Spring steel
- Thread diameter : 5mm
- Total pin length : 13.6mm
- Cylinder diameter : 3.7mm
- Maximum diameter : 6.3mm
- Matching wrench : L2
- Package includes : 10 pin
Key Features:
- High-Temperature Hardened Spring Steel: Engineered for superior toughness and long-lasting durability.
- Sturdy and Durable: Ideal for frequent use in industrial settings.
- Compact and Precision-Fit Design: Thread diameter of 5mm and total pin length of 13.6mm.
- Easy to Use: Compatible with L2 wrench for convenient tool installation.
CTM513 Spring Steel Center Pin – Premium CNC Tool Bar Accessory for Precise Lathe Assembly
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High-Quality CTM513 Spring Steel Center Pin – Durable, Hardened & Perfect for CNC Tool Assembly
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Precision-Made CTM513 Spring Steel Center Pin – Easy to Use, Sturdy & Long-Lasting for CNC Lathes

Need Help With BEYOND Inserts?
Looking for a 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 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.
