TNMG CNC Lathes Turning Tools

About the product

TNMG carbide inserts are triangular-shaped with a negative rake angle, suitable for a wide range of materials including stainless steel and cast iron. The TNMG 331 insert has an inscribed circle diameter (IC) of 3/8", a thickness (S) of 3/16", and a corner radius (r) of 1/64". These inserts offer up to six cutting edges and are secured via a cylindrical fixing hole, making them versatile for various turning operations. The TNMG 331-PM T9215 grade, for instance, features a negative relief angle and M class, designed for medium cutting with materials such as steel and stainless steel

Advanced coatings like TiCN+Al2O3+TiN enhance wear resistance and extend tool life, providing reliable performance in high-speed machining

Core Components: TNMG Inserts & Toolholders

• TNMG Insert Material:

• TiAlN: Enhances wear resistance for steel; extends edge life by 40% vs. uncoated.

• AlCrN: Resists chemical reactions with stainless steel; prevents BUE.

• Uncoated: For soft non-ferrous metals (aluminum 6061) to ensure smooth finishes.

• General-Purpose (e.g., K10, P20): Balanced hardness (90–92 HRA) and toughness for carbon steel, alloy steel, and cast iron—ideal for mixed-production shops.

• High-Temperature Resistant (e.g., S30, H13): Infused with TiCN/Al₂O₃ for machining stainless steel (304/316) and high-alloy metals, withstanding 1,000°C+ cutting heat.

• Non-Ferrous Optimized (e.g., K05): Ultra-fine grains (0.6–0.8μm) for aluminum/copper, minimizing built-up edge (BUE).

• Carbide Grades: Available in multiple substrates to match materials:

  
  

• Toolholder Construction:

• Body: Forged 42CrMo alloy steel (HRC38–42) for rigidity; resists deflection under heavy cutting forces (up to 6,000 N).

• Clamping: Wedge-lock or screw-on systems for secure insert retention; ensures ±0.002mm repeatability during insert changes.

Key Features of TNMG Turning Tools

1. Triangular Geometry for Multi-Edge Efficiency
   TNMG inserts feature an 80° triangular design with 3 usable cutting edges, maximizing cost-effectiveness (each edge delivers consistent performance before replacement). Standard sizes range from TNMG 160404 (16mm IC, 4mm thickness, 0.4mm nose radius) to TNMG 220412—suited for everything from small-diameter shafts to large industrial rollers.
2. Dual-Purpose Roughing/Finishing Capability

• Roughing: Deep chipbreaker grooves (e.g., "M" or "N" type) handle high feed rates (0.2–0.5 mm/rev) to remove material quickly; ideal for forged/cast parts.

• Finishing: Small nose radii (0.2–0.8mm) and polished edges deliver surface finishes as fine as Ra 0.8μm; perfect for automotive components (e.g., crankshafts) or precision fasteners.

• Ferrous metals: Carbon steel (45#), alloy steel (40Cr), cast iron (HT200), stainless steel (304).

• Non-ferrous metals: Aluminum (6061/7075), copper, brass.

• High-temperature alloys: Inconel (for aerospace parts, with specialized H-grade inserts).

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Applications

• Target Operations:

• External Turning (OD): Machining cylindrical surfaces (e.g., shafts, bolts, hydraulic cylinders).

• Facing: Creating flat end surfaces on workpieces (e.g., engine block faces).

• Shoulder Turning: Cutting stepped surfaces (e.g., gear blanks, flange mounts) with tight tolerance (±0.005mm).

• Key Industries:

• Automotive: Machining transmission shafts, wheel hubs, and engine components.

• Aerospace: Precision turning of aluminum alloy brackets or stainless steel fasteners.

• Heavy Machinery: Roughing large cast iron parts (e.g., pump housings) and finishing bearing seats.

• General Manufacturing: Custom turning of metal parts for industrial equipment or consumer goods.

Compatible CNC Lathes

• Horizontal CNC Lathes: Fanuc 0i-TF, Haas ST-series, Mazak Quick Turn, Doosan Puma.

• Slant-Bed Lathes: Okuma LB3000, Nakamura-Tome SC-series (leverage rigidity for heavy cutting).

• Swiss-Type Lathes: Tsugami B0326 (with mini TNMG inserts for small-diameter parts like electronics connectors).

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Performance & Lifespan

• Recommended Cutting Parameters:

• Steel (45#): 150–250 m/min cutting speed; 0.2–0.4 mm/rev feed.

• Stainless Steel (304): 80–150 m/min; 0.15–0.3 mm/rev (slower to avoid work hardening).

• Aluminum (6061): 800–1,200 m/min; 0.3–0.6 mm/rev.

  
  

• Service Life:

• Coated inserts: 150–300 minutes per edge (steel machining); 250–400 minutes (aluminum).

• Toolholders: 7–10 years of daily use (8–12 hours/day) with proper maintenance (cleaning, lubricating clamping screws).

User Testimonial

Summary

TNMG CNC lathe turning tools combine versatile triangular inserts, durable toolholders, and broad material compatibility to excel in both roughing and finishing tasks. Their efficiency, precision, and cost-effectiveness make them a staple in modern machining shops—whether for high-volume automotive production or custom aerospace components.

About Our Company

Jinan Xinxin Trading Co., Ltd. is a company specializing in a full range of turning tools, milling tools, holemaking tools, carbide cutting tools, machine tool accessories and

other products. At the same time, we accept non-standard product customization and provide perfect tooling solutions for the machining and manufacturing industry. 

After years of development, our company firmly believe in the concept of integrity-based, with high-quality service so that the company's products are exported to

 Europe, the Middle East, South America, Southeast Asia throughout the world's more than 40 industrialized countries and regions, won the majority of domestic

 and foreign customers to support and trust.

Jinan Xinxin Trading Co., Ltd. was founded in 2012, is an excellent comprehensive imported CNC cutting tools agents in Shandong, the company firmly believe in 

the concept of good faith, with high quality and attentive service. The company believes in the concept of good faith, with high quality and attentive service. For

 the various machining enterprises to supply the world's famous brands of imported CNC cutting tools, machining center tools.

Company Brands

Our company brand IRONROOT series products, with excellent quality and perfect service, strive to reduce the cost of using tools for you.

Main products

Our company, as an important link in the machining field, is following and driving its whole system to run. Our distribution of products has become increasingly systematized, mainly including: Sandvik Coromant sandvikcoromant, Seco, Walter, Kennametal Group Kennametal, Mitsubishi MITSUBISHI, Sumitomo Sumitomo, Kyocera Sholette Kyocera CERATIP, Toshiba, Daijie, Hitachi Tools HITACHI TOOL, ISCAR ISCAR, German cobalt collar Guehring, TEGUTEC TAEGUTEC, KORLOY KORLOY and so on.

Domestic brands: Zhuzhou Diamond Brand, Zigong Great Wall Brand, Zhuzhou Jingcheng Brand, Chengdu Yingge, Ha Yigong, Harbin Tool Factory, Southwest Tools, Chengqi Tools, Shaanxi Cemented Carbide, Zhuzhou Cemented Carbide, Guizhou Yihai, Shanghai Tool Factory and a series of domestic and foreign well-known brands of manufacturers of various types and specifications of CNC blades, Metal lathe tools CNC cutting tools, whole tools, machine-clamped blades, welded blades, toolposts, shank, holder, tungsten steel slats, bars. Tungsten steel slats and bars.

At present, our company's product range includes turning tools, milling tools, drilling tools, tooling systems, carbide cutting tools, machine tool accessories and so on.

Our Customer Reviews

Our products are exported to various countries, including the United States, the United Kingdom, Spain, Italy, Belgium, France, Germany, etc., and are deeply loved and supported by users in these countries. Our products are cost-effective, quality guaranteed, and genuine products.

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Welcome to inquire about the prices, and we will provide you with the best service.

Website: https://www.ironrootcnctools.com
Whatsapp/Mobile: +86 13969129141
Email: lronroot190@gmail.com