External Turning Tool Holder

About the product

The external turning tool holder is an indispensable tool in modern machining, known for its high efficiency, precision and economy. It significantly reduces downtime and improves production efficiency through the quick tool change system. The high-precision tool holder design ensures accuracy during the machining process, and the cutting blade can be replaced without additional adjustment. In addition, the external turning tool holder excels in cost control and can reduce workpiece costs by up to 40%. Its wide range of machining width adaptability enables it to cope with the machining needs of parts of different sizes. It has outstanding technical features and supports multiple sharpening and one-time use to meet diverse machining needs. The external turning tool holder has become a key factor in improving production efficiency and machining quality with its excellent surface machining quality and wide lathe applicability.

Material & Construction 

• Body Material: Lathe Tool Holders Crafted from high-strength alloy steel (4140 or 42CrMo) with heat treatment to 38–42 HRC. This ensures rigidity to resist deflection during heavy cutting and durability against vibration, a common cause of premature wear.

• Clamping Components: Hardened steel (55–60 HRC) for the screw and insert seat, maintaining secure blade retention even after 1,000+ insert changes. Some premium models add a corrosion-resistant black oxide or zinc-nickel coating to protect against coolant and workshop contaminants.

• Precision Machining: Critical surfaces (e.g., insert seat, tool shank) are ground to ±0.002mm tolerance, minimizing runout and ensuring consistent blade alignment.

The application range of external turning tool holders is wide, mainly reflected in the following aspects:

1. Processing of metal and non-metal materials: External turning tool holders are suitable for external cylindrical surface processing of various metal and non-metal materials, including steel, cast iron, non-ferrous metals and non-metals.

2. Roughing and semi-finishing: It is not only the main method for roughing and semi-finishing the external cylindrical surface of various materials, but also the final finishing method for materials that are not suitable for grinding (such as non-ferrous metals such as copper and aluminum).

3. Single-piece small batch production: In single-piece small batch production, external turning tool holders are often used for external cylindrical surface processing on ordinary lathes.

4. Mass production: In mass production, external turning tool holders are widely used in multi-tool semi-automatic lathes or automatic lathes.

5. Large parts processing: The processing of large disc parts and large long shaft parts is carried out on vertical lathes and heavy horizontal lathes respectively, and external turning tool holders play an important role in these processes.

Key Features：

1. Rapid Tool Change System
   Equipped with a quick-release clamping mechanism (e.g., lever-lock or cam-lock) that reduces tool swap time to 10–15 seconds—down from 1–2 minutes with traditional holders. This cuts downtime by 70% in high-volume production.

2. Tool-Less Insert Replacement
   Blades can be swapped without re-calibrating offsets or adjusting the holder. The precision-machined insert seat maintains ±0.005mm repeatability, ensuring dimensional accuracy across batches.

3. Broad Machining Width Range
   Accommodates insert sizes from 3mm to 25mm in width, handling small-diameter parts (e.g., M5 shafts) and large workpieces (e.g., 200mm-diameter industrial rollers) without holder changes.

4. Flexible Blade Compatibility
   Works with common turning inserts (TNMG, CNMG, WNMG series) and supports both multiple sharpening (for cost-saving reusability of carbide blades) and one-time use (for ultra-precise ceramic or CBN blades).

5. Cost Efficiency
   Reduces per-workpiece costs by up to 40% via three channels: fewer tool changes (less labor), extended blade life (via stable clamping), and minimized scrap (from consistent precision).

Applications 

• Target Operations: External turning (OD turning), facing, shoulder machining, and light roughing/finishing of cylindrical parts.

• Materials Handled: Carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous metals (aluminum, copper)—suitable for automotive, machinery, and general engineering.

• Key Use Cases:

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

• Heavy Machinery: Turning hydraulic cylinder barrels and gear blanks.

• General Manufacturing: Producing structural steel components and precision fasteners.

Compatible Machines

• CNC Lathes: Fanuc 0i-TF, Siemens Sinumerik 828D, Haas ST-series, Mazak Quick Turn, and Doosan Puma.

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

• Manual Lathes: Upgraded models with tool posts compatible with standard shank sizes (e.g., 20mm, 25mm, 32mm shanks).

• Performance & Lifespan：

• Recommended Operating Parameters:

• Cutting force capacity: Up to 5,000 N (suitable for medium to heavy turning).

• Maximum spindle speed: 6,000 RPM (varies by holder size; larger shanks support higher stability at speed).

• Service Life:

• 5–8 years of daily use (8–10 hours/day) for alloy steel bodies, with no loss in precision.

• Clamping components (screws, seats) typically last 3–5 years before replacement is needed.

• Corrosion-resistant coatings extend life by 2–3 years in wet machining environments (e.g., coolant-intensive automotive production).

  User Testimonial

  Mike Torres, production manager at Industrial Turning Solutions, says: “We switched to these external turning tool holders last year, and our efficiency jumped 35%. The quick change system means we swap inserts in seconds, not minutes, and the repeatability is spot-on—no more adjusting offsets between parts. For our 10,000-unit shaft orders, the 40% cost reduction per part adds up to serious savings. They fit all our Haas and Mazak lathes, so we didn’t need new machines. Total win.”

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